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authorHai Li <hali@codeaurora.org>2015-06-11 10:56:46 -0400
committerRob Clark <robdclark@gmail.com>2015-08-15 18:27:11 -0400
commitab8909b032ffccc15384879dd5798b8647d6ab8a (patch)
tree478e4d645eb74b205c0ebb368a85f4a39037300d /drivers/gpu
parent678565c3cb2100a8f03c23592f13f6b78e69a590 (diff)
drm/msm/dsi: Use pinctrl in DSI driver
Some targets use pinctrl framework to configure some pins. This change allows DSI driver to set default and sleep pinctrl status. Signed-off-by: Hai Li <hali@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/msm/dsi/dsi_host.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index de0400923303..69c13970a36c 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -20,6 +20,7 @@
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/of_irq.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/regulator/consumer.h>
#include <linux/spinlock.h>
#include <video/mipi_display.h>
@@ -1919,6 +1920,13 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host)
goto fail_disable_reg;
}
+ ret = pinctrl_pm_select_default_state(&msm_host->pdev->dev);
+ if (ret) {
+ pr_err("%s: failed to set pinctrl default state, %d\n",
+ __func__, ret);
+ goto fail_disable_clk;
+ }
+
dsi_timing_setup(msm_host);
dsi_sw_reset(msm_host);
dsi_ctrl_config(msm_host, true, clk_pre, clk_post);
@@ -1931,6 +1939,8 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host)
return 0;
+fail_disable_clk:
+ dsi_clk_ctrl(msm_host, 0);
fail_disable_reg:
dsi_host_regulator_disable(msm_host);
unlock_ret:
@@ -1953,6 +1963,8 @@ int msm_dsi_host_power_off(struct mipi_dsi_host *host)
if (msm_host->disp_en_gpio)
gpiod_set_value(msm_host->disp_en_gpio, 0);
+ pinctrl_pm_select_sleep_state(&msm_host->pdev->dev);
+
msm_dsi_manager_phy_disable(msm_host->id);
dsi_clk_ctrl(msm_host, 0);