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mmc: mmci: Drop support for pdata GPIO numbers 

All the machines using the MMCI are passing GPIOs for the
card detect and write protect using the device tree or
descriptor table (one single case, Integrator/AP IM-PD1).

Drop support for passing global GPIO numbers through
platform data, noone is using it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Linus Walleij 2018-09-20 16:01:10 -07:00 committed by Ulf Hansson
parent 07be55b567
commit 9ef986a697
4 changed files with 8 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-integrator/integrator_cp.c
View File

@ -80,8 +80,6 @@ static unsigned int mmc_status(struct device *dev)
static struct mmci_platform_data mmc_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.status = mmc_status,
.gpio_wp = -1,
.gpio_cd = -1,
};
static u64 notrace intcp_read_sched_clock(void)

4
arch/arm/mach-versatile/versatile_dt.c
View File

@ -89,15 +89,11 @@ unsigned int mmc_status(struct device *dev)
static struct mmci_platform_data mmc0_plat_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.status = mmc_status,
.gpio_wp = -1,
.gpio_cd = -1,
};
static struct mmci_platform_data mmc1_plat_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.status = mmc_status,
.gpio_wp = -1,
.gpio_cd = -1,
};
/*

34
drivers/mmc/host/mmci.c
View File

@ -28,8 +28,7 @@
#include <linux/amba/bus.h>
#include <linux/clk.h>
#include <linux/scatterlist.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/of.h>
#include <linux/regulator/consumer.h>
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
@ -1675,13 +1674,6 @@ static int mmci_probe(struct amba_device *dev,
else if (plat->ocr_mask)
dev_warn(mmc_dev(mmc), "Platform OCR mask is ignored\n");
/* DT takes precedence over platform data. */
if (!np) {
if (!plat->cd_invert)
mmc->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
}
/* We support these capabilities. */
mmc->caps |= MMC_CAP_CMD23;
@ -1749,30 +1741,16 @@ static int mmci_probe(struct amba_device *dev,
* - not using DT but using a descriptor table, or
* - using a table of descriptors ALONGSIDE DT, or
* look up these descriptors named "cd" and "wp" right here, fail
* silently of these do not exist and proceed to try platform data
* silently of these do not exist
*/
if (!np) {
ret = mmc_gpiod_request_cd(mmc, "cd", 0, false, 0, NULL);
if (ret < 0) {
if (ret == -EPROBE_DEFER)
goto clk_disable;
else if (gpio_is_valid(plat->gpio_cd)) {
ret = mmc_gpio_request_cd(mmc, plat->gpio_cd, 0);
if (ret)
goto clk_disable;
}
}
if (ret == -EPROBE_DEFER)
goto clk_disable;
ret = mmc_gpiod_request_ro(mmc, "wp", 0, false, 0, NULL);
if (ret < 0) {
if (ret == -EPROBE_DEFER)
goto clk_disable;
else if (gpio_is_valid(plat->gpio_wp)) {
ret = mmc_gpio_request_ro(mmc, plat->gpio_wp);
if (ret)
goto clk_disable;
}
}
if (ret == -EPROBE_DEFER)
goto clk_disable;
}
ret = devm_request_irq(&dev->dev, dev->irq[0], mmci_irq, IRQF_SHARED,

11
include/linux/amba/mmci.h
View File

@ -18,20 +18,13 @@
* mask into a value to be binary (or set some other custom bits
* in MMCIPWR) or:ed and written into the MMCIPWR register of the
* block. May also control external power based on the power_mode.
* @status: if no GPIO read function was given to the block in
* gpio_wp (below) this function will be called to determine
* whether a card is present in the MMC slot or not
* @gpio_wp: read this GPIO pin to see if the card is write protected
* @gpio_cd: read this GPIO pin to detect card insertion
* @cd_invert: true if the gpio_cd pin value is active low
* @status: if no GPIO line was given to the block in this function will
* be called to determine whether a card is present in the MMC slot or not
*/
struct mmci_platform_data {
unsigned int ocr_mask;
int (*ios_handler)(struct device *, struct mmc_ios *);
unsigned int (*status)(struct device *);
int gpio_wp;
int gpio_cd;
bool cd_invert;
};
#endif