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* [RESEND PATCH] gpio: rgpio2p: Enhance reading of GPIO pin value
@ 2022-05-23 11:33 sbabic
  0 siblings, 0 replies; 7+ messages in thread
From: sbabic @ 2022-05-23 11:33 UTC (permalink / raw)
  To: Christoph Fritz, u-boot

> Add support for reading GPIO pin value when function is output.
> With this patch applied, gpio toggle command is working.
> Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
> Reviewed-by: Peng Fan <peng.fan@nxp.com>
> Reviewed-by: Fabio Estevam <festevam@denx.de>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

-- 
=====================================================================
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic@denx.de
=====================================================================

^ permalink raw reply	[flat|nested] 7+ messages in thread
* [RESEND PATCH] gpio: rgpio2p: Enhance reading of GPIO pin value
@ 2022-04-05 10:29 Christoph Fritz
  2022-04-23 20:37 ` Christoph Fritz
  0 siblings, 1 reply; 7+ messages in thread
From: Christoph Fritz @ 2022-04-05 10:29 UTC (permalink / raw)
  To: Stefano Babic, Tom Rini; +Cc: u-boot, Peng Fan, Fabio Estevam

Add support for reading GPIO pin value when function is output.
With this patch applied, gpio toggle command is working.

Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
---
 drivers/gpio/imx_rgpio2p.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/imx_rgpio2p.c b/drivers/gpio/imx_rgpio2p.c
index 0e2874ca95c..175e460aff5 100644
--- a/drivers/gpio/imx_rgpio2p.c
+++ b/drivers/gpio/imx_rgpio2p.c
@@ -39,6 +39,14 @@ static int imx_rgpio2p_is_output(struct gpio_regs *regs, int offset)
 	return val & (1 << offset) ? 1 : 0;
 }
 
+static int imx_rgpio2p_bank_get_direction(struct gpio_regs *regs, int offset)
+{
+	if ((readl(&regs->gpio_pddr) >> offset) & 0x01)
+		return IMX_RGPIO2P_DIRECTION_OUT;
+
+	return IMX_RGPIO2P_DIRECTION_IN;
+}
+
 static void imx_rgpio2p_bank_direction(struct gpio_regs *regs, int offset,
 				    enum imx_rgpio2p_direction direction)
 {
@@ -67,7 +75,11 @@ static void imx_rgpio2p_bank_set_value(struct gpio_regs *regs, int offset,
 
 static int imx_rgpio2p_bank_get_value(struct gpio_regs *regs, int offset)
 {
-	return (readl(&regs->gpio_pdir) >> offset) & 0x01;
+	if (imx_rgpio2p_bank_get_direction(regs, offset) ==
+	    IMX_RGPIO2P_DIRECTION_IN)
+		return (readl(&regs->gpio_pdir) >> offset) & 0x01;
+
+	return (readl(&regs->gpio_pdor) >> offset) & 0x01;
 }
 
 static int  imx_rgpio2p_direction_input(struct udevice *dev, unsigned offset)
-- 
2.30.2




^ permalink raw reply related	[flat|nested] 7+ messages in thread
* [RESEND PATCH] gpio: rgpio2p: Enhance reading of GPIO pin value
@ 2022-03-24 15:11 Christoph Fritz
  2022-03-24 16:00 ` Fabio Estevam
  0 siblings, 1 reply; 7+ messages in thread
From: Christoph Fritz @ 2022-03-24 15:11 UTC (permalink / raw)
  To: u-boot, Stefano Babic; +Cc: Peng Fan, Fabio Estevam

Add support for reading GPIO pin value when function is output.
With this patch applied, gpio toggle command is working.

Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Cc: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/gpio/imx_rgpio2p.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/imx_rgpio2p.c b/drivers/gpio/imx_rgpio2p.c
index 0e2874ca95c..175e460aff5 100644
--- a/drivers/gpio/imx_rgpio2p.c
+++ b/drivers/gpio/imx_rgpio2p.c
@@ -39,6 +39,14 @@ static int imx_rgpio2p_is_output(struct gpio_regs *regs, int offset)
 	return val & (1 << offset) ? 1 : 0;
 }
 
+static int imx_rgpio2p_bank_get_direction(struct gpio_regs *regs, int offset)
+{
+	if ((readl(&regs->gpio_pddr) >> offset) & 0x01)
+		return IMX_RGPIO2P_DIRECTION_OUT;
+
+	return IMX_RGPIO2P_DIRECTION_IN;
+}
+
 static void imx_rgpio2p_bank_direction(struct gpio_regs *regs, int offset,
 				    enum imx_rgpio2p_direction direction)
 {
@@ -67,7 +75,11 @@ static void imx_rgpio2p_bank_set_value(struct gpio_regs *regs, int offset,
 
 static int imx_rgpio2p_bank_get_value(struct gpio_regs *regs, int offset)
 {
-	return (readl(&regs->gpio_pdir) >> offset) & 0x01;
+	if (imx_rgpio2p_bank_get_direction(regs, offset) ==
+	    IMX_RGPIO2P_DIRECTION_IN)
+		return (readl(&regs->gpio_pdir) >> offset) & 0x01;
+
+	return (readl(&regs->gpio_pdor) >> offset) & 0x01;
 }
 
 static int  imx_rgpio2p_direction_input(struct udevice *dev, unsigned offset)
-- 
2.30.2




^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2022-05-23 11:34 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-05-23 11:33 [RESEND PATCH] gpio: rgpio2p: Enhance reading of GPIO pin value sbabic
  -- strict thread matches above, loose matches on Subject: below --
2022-04-05 10:29 Christoph Fritz
2022-04-23 20:37 ` Christoph Fritz
2022-05-21  0:17   ` Christoph Fritz
2022-05-21 13:35     ` Stefano Babic
2022-03-24 15:11 Christoph Fritz
2022-03-24 16:00 ` Fabio Estevam

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