Export Panel BACKLIGHT_EN(offset 0x51) and PANEL_EN(offset 0x52) as two
additional GPIOs. Needed by display driver to enable the DSI panel on
BYT platform where the Panel EN/Disable and Backlight control are
routed thorugh CRC PMIC
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Alexandre Courbot <gnurou@xxxxxxxxx>
Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
Signed-off-by: Shobhit Kumar <shobhit.kumar@xxxxxxxxx>
---
drivers/gpio/gpio-crystalcove.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-crystalcove.c b/drivers/gpio/gpio-crystalcove.c
index 3d9e08f..9e94dc64 100644
--- a/drivers/gpio/gpio-crystalcove.c
+++ b/drivers/gpio/gpio-crystalcove.c
@@ -24,7 +24,7 @@
#include <linux/mfd/intel_soc_pmic.h>
#define CRYSTALCOVE_GPIO_NUM 16
-#define CRYSTALCOVE_VGPIO_NUM 94
+#define CRYSTALCOVE_VGPIO_NUM 96
#define UPDATE_IRQ_TYPE BIT(0)
#define UPDATE_IRQ_MASK BIT(1)
@@ -39,6 +39,7 @@
#define GPIO0P0CTLI 0x33
#define GPIO1P0CTLO 0x3b
#define GPIO1P0CTLI 0x43
+#define GPIOPANELCTL 0x51
#define CTLI_INTCNT_DIS (0)
#define CTLI_INTCNT_NE (1 << 1)
@@ -93,6 +94,11 @@ static inline int to_reg(int gpio, enum ctrl_register reg_type)
{
int reg;
+ if (gpio >= 94) {
+ reg = GPIOPANELCTL + gpio - 94;
+ return reg;
+ }
+
if (reg_type == CTRL_IN) {
if (gpio < 8)
reg = GPIO0P0CTLI;
--
1.9.1
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