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drm/omap: tpd12s015: gpio descriptor API 

Migrated the gpio APIs to descriptor-interface based.

Signed-off-by: Manisha Agrawal <manisha.agrawal@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Manisha Agrawal 2015-11-03 15:22:49 -06:00 committed by Tomi Valkeinen
parent 45dd63c479
commit 460543ba29
1 changed files with 28 additions and 51 deletions
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79
drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c
View File

@ -13,9 +13,8 @@
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/of_gpio.h>
#include <linux/gpio/consumer.h>
#include <video/omapdss.h>
#include <video/omap-panel-data.h>
@ -24,9 +23,9 @@ struct panel_drv_data {
struct omap_dss_device dssdev;
struct omap_dss_device *in;
int ct_cp_hpd_gpio;
int ls_oe_gpio;
int hpd_gpio;
struct gpio_desc *ct_cp_hpd_gpio;
struct gpio_desc *ls_oe_gpio;
struct gpio_desc *hpd_gpio;
struct omap_video_timings timings;
};
@ -47,7 +46,7 @@ static int tpd_connect(struct omap_dss_device *dssdev,
dst->src = dssdev;
dssdev->dst = dst;
gpio_set_value_cansleep(ddata->ct_cp_hpd_gpio, 1);
gpiod_set_value_cansleep(ddata->ct_cp_hpd_gpio, 1);
/* DC-DC converter needs at max 300us to get to 90% of 5V */
udelay(300);
@ -65,7 +64,7 @@ static void tpd_disconnect(struct omap_dss_device *dssdev,
if (dst != dssdev->dst)
return;
gpio_set_value_cansleep(ddata->ct_cp_hpd_gpio, 0);
gpiod_set_value_cansleep(ddata->ct_cp_hpd_gpio, 0);
dst->src = NULL;
dssdev->dst = NULL;
@ -145,16 +144,14 @@ static int tpd_read_edid(struct omap_dss_device *dssdev,
struct omap_dss_device *in = ddata->in;
int r;
if (!gpio_get_value_cansleep(ddata->hpd_gpio))
if (!gpiod_get_value_cansleep(ddata->hpd_gpio))
return -ENODEV;
if (gpio_is_valid(ddata->ls_oe_gpio))
gpio_set_value_cansleep(ddata->ls_oe_gpio, 1);
gpiod_set_value_cansleep(ddata->ls_oe_gpio, 1);
r = in->ops.hdmi->read_edid(in, edid, len);
if (gpio_is_valid(ddata->ls_oe_gpio))
gpio_set_value_cansleep(ddata->ls_oe_gpio, 0);
gpiod_set_value_cansleep(ddata->ls_oe_gpio, 0);
return r;
}
@ -163,7 +160,7 @@ static bool tpd_detect(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
return gpio_get_value_cansleep(ddata->hpd_gpio);
return gpiod_get_value_cansleep(ddata->hpd_gpio);
}
static int tpd_set_infoframe(struct omap_dss_device *dssdev,
@ -206,32 +203,6 @@ static int tpd_probe_of(struct platform_device *pdev)
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct device_node *node = pdev->dev.of_node;
struct omap_dss_device *in;
int gpio;
/* CT CP HPD GPIO */
gpio = of_get_gpio(node, 0);
if (!gpio_is_valid(gpio)) {
dev_err(&pdev->dev, "failed to parse CT CP HPD gpio\n");
return gpio;
}
ddata->ct_cp_hpd_gpio = gpio;
/* LS OE GPIO */
gpio = of_get_gpio(node, 1);
if (gpio_is_valid(gpio) || gpio == -ENOENT) {
ddata->ls_oe_gpio = gpio;
} else {
dev_err(&pdev->dev, "failed to parse LS OE gpio\n");
return gpio;
}
/* HPD GPIO */
gpio = of_get_gpio(node, 2);
if (!gpio_is_valid(gpio)) {
dev_err(&pdev->dev, "failed to parse HPD gpio\n");
return gpio;
}
ddata->hpd_gpio = gpio;
in = omapdss_of_find_source_for_first_ep(node);
if (IS_ERR(in)) {
@ -249,6 +220,7 @@ static int tpd_probe(struct platform_device *pdev)
struct omap_dss_device *in, *dssdev;
struct panel_drv_data *ddata;
int r;
struct gpio_desc *gpio;
ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
if (!ddata)
@ -263,23 +235,28 @@ static int tpd_probe(struct platform_device *pdev)
if (r)
return r;
r = devm_gpio_request_one(&pdev->dev, ddata->ct_cp_hpd_gpio,
GPIOF_OUT_INIT_LOW, "hdmi_ct_cp_hpd");
if (r)
gpio = devm_gpiod_get_index(&pdev->dev, NULL, 0,
GPIOD_OUT_LOW);
if (IS_ERR(gpio))
goto err_gpio;
if (gpio_is_valid(ddata->ls_oe_gpio)) {
r = devm_gpio_request_one(&pdev->dev, ddata->ls_oe_gpio,
GPIOF_OUT_INIT_LOW, "hdmi_ls_oe");
if (r)
goto err_gpio;
}
ddata->ct_cp_hpd_gpio = gpio;
r = devm_gpio_request_one(&pdev->dev, ddata->hpd_gpio,
GPIOF_DIR_IN, "hdmi_hpd");
if (r)
gpio = devm_gpiod_get_index_optional(&pdev->dev, NULL, 1,
GPIOD_OUT_LOW);
if (IS_ERR(gpio))
goto err_gpio;
ddata->ls_oe_gpio = gpio;
gpio = devm_gpiod_get_index(&pdev->dev, NULL, 2,
GPIOD_IN);
if (IS_ERR(gpio))
goto err_gpio;
ddata->hpd_gpio = gpio;
dssdev = &ddata->dssdev;
dssdev->ops.hdmi = &tpd_hdmi_ops;
dssdev->dev = &pdev->dev;