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linux/drivers/gpu/drm/msm/hdmi/hdmi_phy_8960.c

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drm/msm: basic KMS driver for snapdragon The snapdragon chips have multiple different display controllers, depending on which chip variant/version. (As far as I can tell, current devices have either MDP3 or MDP4, and upcoming devices have MDSS.) And then external to the display controller are HDMI, DSI, etc. blocks which may be shared across devices which have different display controller blocks. To more easily add support for different display controller blocks, the display controller specific bits are split out into a "kms" module, which provides the kms plane/crtc/encoder objects. The external HDMI, DSI, etc. blocks are part encoder, and part connector currently. But I think I will pull in the drm_bridge patches from chromeos tree, and split them into a bridge+connector, with the registers that need to be set in modeset handled by the bridge. This would remove the 'msm_connector' base class. But some things need to be double checked to make sure I could get the correct ON/OFF sequencing.. This patch adds support for mdp4 crtc (including hw cursor), dtv encoder (part of MDP4 block), and hdmi. Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-06-27 00:44:06 +08:00
/*
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
drm/msm/hdmi: fix build break on non-CCF platforms Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-03 02:01:55 +08:00
#ifdef CONFIG_COMMON_CLK
drm/msm: hdmi phy 8960 phy pll On downstream kernel the clk driver directly bangs hdmi phy registers. For upstream kernel, we need to model this as a clock and register with the clock framework. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-25 21:54:36 +08:00
#include <linux/clk.h>
#include <linux/clk-provider.h>
drm/msm/hdmi: fix build break on non-CCF platforms Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-03 02:01:55 +08:00
#endif
drm/msm: hdmi phy 8960 phy pll On downstream kernel the clk driver directly bangs hdmi phy registers. For upstream kernel, we need to model this as a clock and register with the clock framework. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-25 21:54:36 +08:00
drm/msm: basic KMS driver for snapdragon The snapdragon chips have multiple different display controllers, depending on which chip variant/version. (As far as I can tell, current devices have either MDP3 or MDP4, and upcoming devices have MDSS.) And then external to the display controller are HDMI, DSI, etc. blocks which may be shared across devices which have different display controller blocks. To more easily add support for different display controller blocks, the display controller specific bits are split out into a "kms" module, which provides the kms plane/crtc/encoder objects. The external HDMI, DSI, etc. blocks are part encoder, and part connector currently. But I think I will pull in the drm_bridge patches from chromeos tree, and split them into a bridge+connector, with the registers that need to be set in modeset handled by the bridge. This would remove the 'msm_connector' base class. But some things need to be double checked to make sure I could get the correct ON/OFF sequencing.. This patch adds support for mdp4 crtc (including hw cursor), dtv encoder (part of MDP4 block), and hdmi. Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-06-27 00:44:06 +08:00
#include "hdmi.h"
struct hdmi_phy_8960 {
struct hdmi_phy base;
struct hdmi *hdmi;
drm/msm/hdmi: fix build break on non-CCF platforms Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-03 02:01:55 +08:00
#ifdef CONFIG_COMMON_CLK
drm/msm: hdmi phy 8960 phy pll On downstream kernel the clk driver directly bangs hdmi phy registers. For upstream kernel, we need to model this as a clock and register with the clock framework. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-25 21:54:36 +08:00
struct clk_hw pll_hw;
struct clk *pll;
unsigned long pixclk;
drm/msm/hdmi: fix build break on non-CCF platforms Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-03 02:01:55 +08:00
#endif
drm/msm: basic KMS driver for snapdragon The snapdragon chips have multiple different display controllers, depending on which chip variant/version. (As far as I can tell, current devices have either MDP3 or MDP4, and upcoming devices have MDSS.) And then external to the display controller are HDMI, DSI, etc. blocks which may be shared across devices which have different display controller blocks. To more easily add support for different display controller blocks, the display controller specific bits are split out into a "kms" module, which provides the kms plane/crtc/encoder objects. The external HDMI, DSI, etc. blocks are part encoder, and part connector currently. But I think I will pull in the drm_bridge patches from chromeos tree, and split them into a bridge+connector, with the registers that need to be set in modeset handled by the bridge. This would remove the 'msm_connector' base class. But some things need to be double checked to make sure I could get the correct ON/OFF sequencing.. This patch adds support for mdp4 crtc (including hw cursor), dtv encoder (part of MDP4 block), and hdmi. Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-06-27 00:44:06 +08:00
};
#define to_hdmi_phy_8960(x) container_of(x, struct hdmi_phy_8960, base)
drm/msm/hdmi: fix build break on non-CCF platforms Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-03 02:01:55 +08:00
#ifdef CONFIG_COMMON_CLK
drm/msm: hdmi phy 8960 phy pll On downstream kernel the clk driver directly bangs hdmi phy registers. For upstream kernel, we need to model this as a clock and register with the clock framework. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-25 21:54:36 +08:00
#define clk_to_phy(x) container_of(x, struct hdmi_phy_8960, pll_hw)
/*
* HDMI PLL:
*
* To get the parent clock setup properly, we need to plug in hdmi pll
* configuration into common-clock-framework.
*/
struct pll_rate {
unsigned long rate;
struct {
uint32_t val;
uint32_t reg;
} conf[32];
};
/* NOTE: keep sorted highest freq to lowest: */
static const struct pll_rate freqtbl[] = {
/* 1080p60/1080p50 case */
{ 148500000, {
{ 0x02, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
{ 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG },
{ 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
{ 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
{ 0x2c, REG_HDMI_8960_PHY_PLL_IDAC_ADJ_CFG },
{ 0x06, REG_HDMI_8960_PHY_PLL_I_VI_KVCO_CFG },
{ 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B },
{ 0x76, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
{ 0x01, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
{ 0x4c, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
{ 0xc0, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
{ 0x9a, REG_HDMI_8960_PHY_PLL_SSC_CFG0 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG1 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG2 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG3 },
{ 0x10, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0 },
{ 0x1a, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1 },
{ 0x0d, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2 },
{ 0xe6, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
{ 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
{ 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
{ 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
{ 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 },
{ 0, 0 } }
},
{ 108000000, {
{ 0x08, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
{ 0x21, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
{ 0xf9, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
{ 0x1c, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
{ 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
{ 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
{ 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
{ 0x49, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
{ 0x49, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
{ 0, 0 } }
},
/* 720p60/720p50/1080i60/1080i50/1080p24/1080p30/1080p25 */
{ 74250000, {
{ 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B },
{ 0x12, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
{ 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
{ 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
{ 0x76, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
{ 0xe6, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
{ 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
{ 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
{ 0, 0 } }
},
{ 65000000, {
{ 0x18, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
{ 0x20, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
{ 0xf9, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
{ 0x8a, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
{ 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
{ 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
{ 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
{ 0x0b, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
{ 0x4b, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
{ 0x7b, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
{ 0x09, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
{ 0, 0 } }
},
/* 480p60/480i60 */
{ 27030000, {
{ 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B },
{ 0x38, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
{ 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG },
{ 0x20, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
{ 0xff, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
{ 0x4e, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
{ 0xd7, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
{ 0x03, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
{ 0x2a, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
{ 0x03, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
{ 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
{ 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
{ 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 },
{ 0, 0 } }
},
/* 576p50/576i50 */
{ 27000000, {
{ 0x32, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
{ 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG },
{ 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
{ 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
{ 0x2c, REG_HDMI_8960_PHY_PLL_IDAC_ADJ_CFG },
{ 0x06, REG_HDMI_8960_PHY_PLL_I_VI_KVCO_CFG },
{ 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B },
{ 0x7b, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
{ 0x01, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
{ 0x4c, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
{ 0xc0, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
{ 0x9a, REG_HDMI_8960_PHY_PLL_SSC_CFG0 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG1 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG2 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG3 },
{ 0x10, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0 },
{ 0x1a, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1 },
{ 0x0d, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2 },
{ 0x2a, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
{ 0x03, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
{ 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
{ 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
{ 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 },
{ 0, 0 } }
},
/* 640x480p60 */
{ 25200000, {
{ 0x32, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
{ 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG },
{ 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
{ 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
{ 0x2c, REG_HDMI_8960_PHY_PLL_IDAC_ADJ_CFG },
{ 0x06, REG_HDMI_8960_PHY_PLL_I_VI_KVCO_CFG },
{ 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B },
{ 0x77, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
{ 0x4c, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
{ 0xc0, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
{ 0x9a, REG_HDMI_8960_PHY_PLL_SSC_CFG0 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG1 },
{ 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG2 },
{ 0x20, REG_HDMI_8960_PHY_PLL_SSC_CFG3 },
{ 0x10, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0 },
{ 0x1a, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1 },
{ 0x0d, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2 },
{ 0xf4, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
{ 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
{ 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
{ 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
{ 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 },
{ 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 },
{ 0, 0 } }
},
};
static int hdmi_pll_enable(struct clk_hw *hw)
{
struct hdmi_phy_8960 *phy_8960 = clk_to_phy(hw);
struct hdmi *hdmi = phy_8960->hdmi;
int timeout_count, pll_lock_retry = 10;
unsigned int val;
DBG("");
/* Assert PLL S/W reset */
hdmi_write(hdmi, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x8d);
hdmi_write(hdmi, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0, 0x10);
hdmi_write(hdmi, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1, 0x1a);
/* Wait for a short time before de-asserting
* to allow the hardware to complete its job.
* This much of delay should be fine for hardware
* to assert and de-assert.
*/
udelay(10);
/* De-assert PLL S/W reset */
hdmi_write(hdmi, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x0d);
val = hdmi_read(hdmi, REG_HDMI_8960_PHY_REG12);
val |= HDMI_8960_PHY_REG12_SW_RESET;
/* Assert PHY S/W reset */
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG12, val);
val &= ~HDMI_8960_PHY_REG12_SW_RESET;
/* Wait for a short time before de-asserting
to allow the hardware to complete its job.
This much of delay should be fine for hardware
to assert and de-assert. */
udelay(10);
/* De-assert PHY S/W reset */
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG12, val);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG2, 0x3f);
val = hdmi_read(hdmi, REG_HDMI_8960_PHY_REG12);
val |= HDMI_8960_PHY_REG12_PWRDN_B;
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG12, val);
/* Wait 10 us for enabling global power for PHY */
mb();
udelay(10);
val = hdmi_read(hdmi, REG_HDMI_8960_PHY_PLL_PWRDN_B);
val |= HDMI_8960_PHY_PLL_PWRDN_B_PLL_PWRDN_B;
val &= ~HDMI_8960_PHY_PLL_PWRDN_B_PD_PLL;
hdmi_write(hdmi, REG_HDMI_8960_PHY_PLL_PWRDN_B, val);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG2, 0x80);
timeout_count = 1000;
while (--pll_lock_retry > 0) {
/* are we there yet? */
val = hdmi_read(hdmi, REG_HDMI_8960_PHY_PLL_STATUS0);
if (val & HDMI_8960_PHY_PLL_STATUS0_PLL_LOCK)
break;
udelay(1);
if (--timeout_count > 0)
continue;
/*
* PLL has still not locked.
* Do a software reset and try again
* Assert PLL S/W reset first
*/
hdmi_write(hdmi, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x8d);
udelay(10);
hdmi_write(hdmi, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x0d);
/*
* Wait for a short duration for the PLL calibration
* before checking if the PLL gets locked
*/
udelay(350);
timeout_count = 1000;
}
return 0;
}
static void hdmi_pll_disable(struct clk_hw *hw)
{
struct hdmi_phy_8960 *phy_8960 = clk_to_phy(hw);
struct hdmi *hdmi = phy_8960->hdmi;
unsigned int val;
DBG("");
val = hdmi_read(hdmi, REG_HDMI_8960_PHY_REG12);
val &= ~HDMI_8960_PHY_REG12_PWRDN_B;
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG12, val);
val = hdmi_read(hdmi, REG_HDMI_8960_PHY_PLL_PWRDN_B);
val |= HDMI_8960_PHY_REG12_SW_RESET;
val &= ~HDMI_8960_PHY_REG12_PWRDN_B;
hdmi_write(hdmi, REG_HDMI_8960_PHY_PLL_PWRDN_B, val);
/* Make sure HDMI PHY/PLL are powered down */
mb();
}
static const struct pll_rate *find_rate(unsigned long rate)
{
int i;
for (i = 1; i < ARRAY_SIZE(freqtbl); i++)
if (rate > freqtbl[i].rate)
return &freqtbl[i-1];
return &freqtbl[i-1];
}
static unsigned long hdmi_pll_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct hdmi_phy_8960 *phy_8960 = clk_to_phy(hw);
return phy_8960->pixclk;
}
static long hdmi_pll_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *parent_rate)
{
const struct pll_rate *pll_rate = find_rate(rate);
return pll_rate->rate;
}
static int hdmi_pll_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct hdmi_phy_8960 *phy_8960 = clk_to_phy(hw);
struct hdmi *hdmi = phy_8960->hdmi;
const struct pll_rate *pll_rate = find_rate(rate);
int i;
DBG("rate=%lu", rate);
for (i = 0; pll_rate->conf[i].reg; i++)
hdmi_write(hdmi, pll_rate->conf[i].reg, pll_rate->conf[i].val);
phy_8960->pixclk = rate;
return 0;
}
static const struct clk_ops hdmi_pll_ops = {
.enable = hdmi_pll_enable,
.disable = hdmi_pll_disable,
.recalc_rate = hdmi_pll_recalc_rate,
.round_rate = hdmi_pll_round_rate,
.set_rate = hdmi_pll_set_rate,
};
static const char *hdmi_pll_parents[] = {
"pxo",
};
static struct clk_init_data pll_init = {
.name = "hdmi_pll",
.ops = &hdmi_pll_ops,
.parent_names = hdmi_pll_parents,
.num_parents = ARRAY_SIZE(hdmi_pll_parents),
};
drm/msm/hdmi: fix build break on non-CCF platforms Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-03 02:01:55 +08:00
#endif
drm/msm: hdmi phy 8960 phy pll On downstream kernel the clk driver directly bangs hdmi phy registers. For upstream kernel, we need to model this as a clock and register with the clock framework. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-25 21:54:36 +08:00
/*
* HDMI Phy:
*/
drm/msm: basic KMS driver for snapdragon The snapdragon chips have multiple different display controllers, depending on which chip variant/version. (As far as I can tell, current devices have either MDP3 or MDP4, and upcoming devices have MDSS.) And then external to the display controller are HDMI, DSI, etc. blocks which may be shared across devices which have different display controller blocks. To more easily add support for different display controller blocks, the display controller specific bits are split out into a "kms" module, which provides the kms plane/crtc/encoder objects. The external HDMI, DSI, etc. blocks are part encoder, and part connector currently. But I think I will pull in the drm_bridge patches from chromeos tree, and split them into a bridge+connector, with the registers that need to be set in modeset handled by the bridge. This would remove the 'msm_connector' base class. But some things need to be double checked to make sure I could get the correct ON/OFF sequencing.. This patch adds support for mdp4 crtc (including hw cursor), dtv encoder (part of MDP4 block), and hdmi. Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-06-27 00:44:06 +08:00
static void hdmi_phy_8960_destroy(struct hdmi_phy *phy)
{
struct hdmi_phy_8960 *phy_8960 = to_hdmi_phy_8960(phy);
kfree(phy_8960);
}
static void hdmi_phy_8960_reset(struct hdmi_phy *phy)
{
struct hdmi_phy_8960 *phy_8960 = to_hdmi_phy_8960(phy);
struct hdmi *hdmi = phy_8960->hdmi;
unsigned int val;
val = hdmi_read(hdmi, REG_HDMI_PHY_CTRL);
if (val & HDMI_PHY_CTRL_SW_RESET_LOW) {
/* pull low */
hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
val & ~HDMI_PHY_CTRL_SW_RESET);
} else {
/* pull high */
hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
val | HDMI_PHY_CTRL_SW_RESET);
}
if (val & HDMI_PHY_CTRL_SW_RESET_PLL_LOW) {
/* pull low */
hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
val & ~HDMI_PHY_CTRL_SW_RESET_PLL);
} else {
/* pull high */
hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
val | HDMI_PHY_CTRL_SW_RESET_PLL);
}
msleep(100);
if (val & HDMI_PHY_CTRL_SW_RESET_LOW) {
/* pull high */
hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
val | HDMI_PHY_CTRL_SW_RESET);
} else {
/* pull low */
hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
val & ~HDMI_PHY_CTRL_SW_RESET);
}
if (val & HDMI_PHY_CTRL_SW_RESET_PLL_LOW) {
/* pull high */
hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
val | HDMI_PHY_CTRL_SW_RESET_PLL);
} else {
/* pull low */
hdmi_write(hdmi, REG_HDMI_PHY_CTRL,
val & ~HDMI_PHY_CTRL_SW_RESET_PLL);
}
}
static void hdmi_phy_8960_powerup(struct hdmi_phy *phy,
unsigned long int pixclock)
{
struct hdmi_phy_8960 *phy_8960 = to_hdmi_phy_8960(phy);
struct hdmi *hdmi = phy_8960->hdmi;
drm/msm: hdmi phy 8960 phy pll On downstream kernel the clk driver directly bangs hdmi phy registers. For upstream kernel, we need to model this as a clock and register with the clock framework. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-25 21:54:36 +08:00
DBG("pixclock: %lu", pixclock);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG2, 0x00);
drm/msm: basic KMS driver for snapdragon The snapdragon chips have multiple different display controllers, depending on which chip variant/version. (As far as I can tell, current devices have either MDP3 or MDP4, and upcoming devices have MDSS.) And then external to the display controller are HDMI, DSI, etc. blocks which may be shared across devices which have different display controller blocks. To more easily add support for different display controller blocks, the display controller specific bits are split out into a "kms" module, which provides the kms plane/crtc/encoder objects. The external HDMI, DSI, etc. blocks are part encoder, and part connector currently. But I think I will pull in the drm_bridge patches from chromeos tree, and split them into a bridge+connector, with the registers that need to be set in modeset handled by the bridge. This would remove the 'msm_connector' base class. But some things need to be double checked to make sure I could get the correct ON/OFF sequencing.. This patch adds support for mdp4 crtc (including hw cursor), dtv encoder (part of MDP4 block), and hdmi. Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-06-27 00:44:06 +08:00
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG0, 0x1b);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG1, 0xf2);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG4, 0x00);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG5, 0x00);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG6, 0x00);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG7, 0x00);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG8, 0x00);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG9, 0x00);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG10, 0x00);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG11, 0x00);
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG3, 0x20);
}
static void hdmi_phy_8960_powerdown(struct hdmi_phy *phy)
{
struct hdmi_phy_8960 *phy_8960 = to_hdmi_phy_8960(phy);
struct hdmi *hdmi = phy_8960->hdmi;
drm/msm: hdmi phy 8960 phy pll On downstream kernel the clk driver directly bangs hdmi phy registers. For upstream kernel, we need to model this as a clock and register with the clock framework. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-25 21:54:36 +08:00
DBG("");
drm/msm: basic KMS driver for snapdragon The snapdragon chips have multiple different display controllers, depending on which chip variant/version. (As far as I can tell, current devices have either MDP3 or MDP4, and upcoming devices have MDSS.) And then external to the display controller are HDMI, DSI, etc. blocks which may be shared across devices which have different display controller blocks. To more easily add support for different display controller blocks, the display controller specific bits are split out into a "kms" module, which provides the kms plane/crtc/encoder objects. The external HDMI, DSI, etc. blocks are part encoder, and part connector currently. But I think I will pull in the drm_bridge patches from chromeos tree, and split them into a bridge+connector, with the registers that need to be set in modeset handled by the bridge. This would remove the 'msm_connector' base class. But some things need to be double checked to make sure I could get the correct ON/OFF sequencing.. This patch adds support for mdp4 crtc (including hw cursor), dtv encoder (part of MDP4 block), and hdmi. Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-06-27 00:44:06 +08:00
hdmi_write(hdmi, REG_HDMI_8960_PHY_REG2, 0x7f);
}
static const struct hdmi_phy_funcs hdmi_phy_8960_funcs = {
.destroy = hdmi_phy_8960_destroy,
.reset = hdmi_phy_8960_reset,
.powerup = hdmi_phy_8960_powerup,
.powerdown = hdmi_phy_8960_powerdown,
};
struct hdmi_phy *hdmi_phy_8960_init(struct hdmi *hdmi)
{
struct hdmi_phy_8960 *phy_8960;
struct hdmi_phy *phy = NULL;
drm/msm/hdmi: fix build break on non-CCF platforms Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-03 02:01:55 +08:00
int ret;
#ifdef CONFIG_COMMON_CLK
int i;
drm/msm: hdmi phy 8960 phy pll On downstream kernel the clk driver directly bangs hdmi phy registers. For upstream kernel, we need to model this as a clock and register with the clock framework. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-25 21:54:36 +08:00
/* sanity check: */
for (i = 0; i < (ARRAY_SIZE(freqtbl) - 1); i++)
if (WARN_ON(freqtbl[i].rate < freqtbl[i+1].rate))
return ERR_PTR(-EINVAL);
drm/msm/hdmi: fix build break on non-CCF platforms Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-03 02:01:55 +08:00
#endif
drm/msm: basic KMS driver for snapdragon The snapdragon chips have multiple different display controllers, depending on which chip variant/version. (As far as I can tell, current devices have either MDP3 or MDP4, and upcoming devices have MDSS.) And then external to the display controller are HDMI, DSI, etc. blocks which may be shared across devices which have different display controller blocks. To more easily add support for different display controller blocks, the display controller specific bits are split out into a "kms" module, which provides the kms plane/crtc/encoder objects. The external HDMI, DSI, etc. blocks are part encoder, and part connector currently. But I think I will pull in the drm_bridge patches from chromeos tree, and split them into a bridge+connector, with the registers that need to be set in modeset handled by the bridge. This would remove the 'msm_connector' base class. But some things need to be double checked to make sure I could get the correct ON/OFF sequencing.. This patch adds support for mdp4 crtc (including hw cursor), dtv encoder (part of MDP4 block), and hdmi. Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-06-27 00:44:06 +08:00
phy_8960 = kzalloc(sizeof(*phy_8960), GFP_KERNEL);
if (!phy_8960) {
ret = -ENOMEM;
goto fail;
}
phy = &phy_8960->base;
phy->funcs = &hdmi_phy_8960_funcs;
phy_8960->hdmi = hdmi;
drm/msm/hdmi: fix build break on non-CCF platforms Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-03 02:01:55 +08:00
#ifdef CONFIG_COMMON_CLK
drm/msm: hdmi phy 8960 phy pll On downstream kernel the clk driver directly bangs hdmi phy registers. For upstream kernel, we need to model this as a clock and register with the clock framework. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-25 21:54:36 +08:00
phy_8960->pll_hw.init = &pll_init;
drm/msm/hdmi: refactor bind/init Split up hdmi_init() into hdmi_init() (done at hdmi sub-device bind/probe time) and hdmi_modeset_init() done from master driver's modeset_init(). Anything that can fail due to dependencies on other drivers which may be missing or not probed yet should go in hdmi_init(), so that devm error/cleanup paths work properly. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-11-05 02:33:14 +08:00
phy_8960->pll = devm_clk_register(&hdmi->pdev->dev, &phy_8960->pll_hw);
drm/msm: hdmi phy 8960 phy pll On downstream kernel the clk driver directly bangs hdmi phy registers. For upstream kernel, we need to model this as a clock and register with the clock framework. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-25 21:54:36 +08:00
if (IS_ERR(phy_8960->pll)) {
ret = PTR_ERR(phy_8960->pll);
phy_8960->pll = NULL;
goto fail;
}
drm/msm/hdmi: fix build break on non-CCF platforms Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-03 02:01:55 +08:00
#endif
drm/msm: hdmi phy 8960 phy pll On downstream kernel the clk driver directly bangs hdmi phy registers. For upstream kernel, we need to model this as a clock and register with the clock framework. Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-25 21:54:36 +08:00
drm/msm: basic KMS driver for snapdragon The snapdragon chips have multiple different display controllers, depending on which chip variant/version. (As far as I can tell, current devices have either MDP3 or MDP4, and upcoming devices have MDSS.) And then external to the display controller are HDMI, DSI, etc. blocks which may be shared across devices which have different display controller blocks. To more easily add support for different display controller blocks, the display controller specific bits are split out into a "kms" module, which provides the kms plane/crtc/encoder objects. The external HDMI, DSI, etc. blocks are part encoder, and part connector currently. But I think I will pull in the drm_bridge patches from chromeos tree, and split them into a bridge+connector, with the registers that need to be set in modeset handled by the bridge. This would remove the 'msm_connector' base class. But some things need to be double checked to make sure I could get the correct ON/OFF sequencing.. This patch adds support for mdp4 crtc (including hw cursor), dtv encoder (part of MDP4 block), and hdmi. Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-06-27 00:44:06 +08:00
return phy;
fail:
if (phy)
hdmi_phy_8960_destroy(phy);
return ERR_PTR(ret);
}