diff mbox

[2/2,v2] OMAP2/3: hwmod: fix gpio-reset timeouts seen during bootup.

Message ID 1302018015-8858-3-git-send-email-avinashhm@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Avinash H.M. April 5, 2011, 3:40 p.m. UTC
GPIO module expects the debounce clocks to be enabled during reset. It doesn't
reset properly and timeouts are seen, if this clock isn't enabled during
reset. Add the HWMOD_CONTROL_OPT_CLKS_IN_RESET flags to the GPIO HWMODs, with
which the debounce clocks are enabled during reset.

Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Signed-off-by: Avinash.H.M <avinashhm@ti.com>
---
 arch/arm/mach-omap2/omap_hwmod_2420_data.c |    4 ++++
 arch/arm/mach-omap2/omap_hwmod_2430_data.c |    5 +++++
 arch/arm/mach-omap2/omap_hwmod_3xxx_data.c |    6 ++++++
 3 files changed, 15 insertions(+), 0 deletions(-)

Comments

Gulati, Shweta April 6, 2011, 5:58 a.m. UTC | #1
Hi,

On Tue, Apr 5, 2011 at 9:10 PM, Avinash.H.M <avinashhm@ti.com> wrote:
> GPIO module expects the debounce clocks to be enabled during reset. It doesn't
> reset properly and timeouts are seen, if this clock isn't enabled during
> reset. Add the HWMOD_CONTROL_OPT_CLKS_IN_RESET flags to the GPIO HWMODs, with
> which the debounce clocks are enabled during reset.
Minor comment,
Rephrase as " GPIO module doesn't reset properly and timeouts are seen
during bootup, if
debounce clock is not enabled"
to make commit log more clear.
> Cc: Rajendra Nayak <rnayak@ti.com>
> Cc: Paul Walmsley <paul@pwsan.com>
> Cc: Benoit Cousson <b-cousson@ti.com>
> Cc: Kevin Hilman <khilman@ti.com>
> Signed-off-by: Avinash.H.M <avinashhm@ti.com>
> ---
>  arch/arm/mach-omap2/omap_hwmod_2420_data.c |    4 ++++
>  arch/arm/mach-omap2/omap_hwmod_2430_data.c |    5 +++++
>  arch/arm/mach-omap2/omap_hwmod_3xxx_data.c |    6 ++++++
>  3 files changed, 15 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
> index 82ff5f7..e0bda0a 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
> @@ -1640,6 +1640,7 @@ static struct omap_hwmod_ocp_if *omap2420_gpio1_slaves[] = {
>
>  static struct omap_hwmod omap2420_gpio1_hwmod = {
>        .name           = "gpio1",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap242x_gpio1_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap242x_gpio1_irqs),
>        .main_clk       = "gpios_fck",
> @@ -1670,6 +1671,7 @@ static struct omap_hwmod_ocp_if *omap2420_gpio2_slaves[] = {
>
>  static struct omap_hwmod omap2420_gpio2_hwmod = {
>        .name           = "gpio2",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap242x_gpio2_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap242x_gpio2_irqs),
>        .main_clk       = "gpios_fck",
> @@ -1700,6 +1702,7 @@ static struct omap_hwmod_ocp_if *omap2420_gpio3_slaves[] = {
>
>  static struct omap_hwmod omap2420_gpio3_hwmod = {
>        .name           = "gpio3",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap242x_gpio3_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap242x_gpio3_irqs),
>        .main_clk       = "gpios_fck",
> @@ -1730,6 +1733,7 @@ static struct omap_hwmod_ocp_if *omap2420_gpio4_slaves[] = {
>
>  static struct omap_hwmod omap2420_gpio4_hwmod = {
>        .name           = "gpio4",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap242x_gpio4_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap242x_gpio4_irqs),
>        .main_clk       = "gpios_fck",
> diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
> index ce292f0..99cd7bd 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
> @@ -1743,6 +1743,7 @@ static struct omap_hwmod_ocp_if *omap2430_gpio1_slaves[] = {
>
>  static struct omap_hwmod omap2430_gpio1_hwmod = {
>        .name           = "gpio1",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap243x_gpio1_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap243x_gpio1_irqs),
>        .main_clk       = "gpios_fck",
> @@ -1773,6 +1774,7 @@ static struct omap_hwmod_ocp_if *omap2430_gpio2_slaves[] = {
>
>  static struct omap_hwmod omap2430_gpio2_hwmod = {
>        .name           = "gpio2",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap243x_gpio2_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap243x_gpio2_irqs),
>        .main_clk       = "gpios_fck",
> @@ -1803,6 +1805,7 @@ static struct omap_hwmod_ocp_if *omap2430_gpio3_slaves[] = {
>
>  static struct omap_hwmod omap2430_gpio3_hwmod = {
>        .name           = "gpio3",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap243x_gpio3_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap243x_gpio3_irqs),
>        .main_clk       = "gpios_fck",
> @@ -1833,6 +1836,7 @@ static struct omap_hwmod_ocp_if *omap2430_gpio4_slaves[] = {
>
>  static struct omap_hwmod omap2430_gpio4_hwmod = {
>        .name           = "gpio4",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap243x_gpio4_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap243x_gpio4_irqs),
>        .main_clk       = "gpios_fck",
> @@ -1863,6 +1867,7 @@ static struct omap_hwmod_ocp_if *omap2430_gpio5_slaves[] = {
>
>  static struct omap_hwmod omap2430_gpio5_hwmod = {
>        .name           = "gpio5",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap243x_gpio5_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap243x_gpio5_irqs),
>        .main_clk       = "gpio5_fck",
> diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
> index c74f972..7552b2f 100644
> --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
> +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
> @@ -2142,6 +2142,7 @@ static struct omap_hwmod_ocp_if *omap3xxx_gpio1_slaves[] = {
>
>  static struct omap_hwmod omap3xxx_gpio1_hwmod = {
>        .name           = "gpio1",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap3xxx_gpio1_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap3xxx_gpio1_irqs),
>        .main_clk       = "gpio1_ick",
> @@ -2178,6 +2179,7 @@ static struct omap_hwmod_ocp_if *omap3xxx_gpio2_slaves[] = {
>
>  static struct omap_hwmod omap3xxx_gpio2_hwmod = {
>        .name           = "gpio2",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap3xxx_gpio2_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap3xxx_gpio2_irqs),
>        .main_clk       = "gpio2_ick",
> @@ -2214,6 +2216,7 @@ static struct omap_hwmod_ocp_if *omap3xxx_gpio3_slaves[] = {
>
>  static struct omap_hwmod omap3xxx_gpio3_hwmod = {
>        .name           = "gpio3",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap3xxx_gpio3_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap3xxx_gpio3_irqs),
>        .main_clk       = "gpio3_ick",
> @@ -2250,6 +2253,7 @@ static struct omap_hwmod_ocp_if *omap3xxx_gpio4_slaves[] = {
>
>  static struct omap_hwmod omap3xxx_gpio4_hwmod = {
>        .name           = "gpio4",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap3xxx_gpio4_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap3xxx_gpio4_irqs),
>        .main_clk       = "gpio4_ick",
> @@ -2286,6 +2290,7 @@ static struct omap_hwmod_ocp_if *omap3xxx_gpio5_slaves[] = {
>
>  static struct omap_hwmod omap3xxx_gpio5_hwmod = {
>        .name           = "gpio5",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap3xxx_gpio5_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap3xxx_gpio5_irqs),
>        .main_clk       = "gpio5_ick",
> @@ -2322,6 +2327,7 @@ static struct omap_hwmod_ocp_if *omap3xxx_gpio6_slaves[] = {
>
>  static struct omap_hwmod omap3xxx_gpio6_hwmod = {
>        .name           = "gpio6",
> +       .flags          = HWMOD_CONTROL_OPT_CLKS_IN_RESET,
>        .mpu_irqs       = omap3xxx_gpio6_irqs,
>        .mpu_irqs_cnt   = ARRAY_SIZE(omap3xxx_gpio6_irqs),
>        .main_clk       = "gpio6_ick",
> --
> 1.7.1
>
> --
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>
Avinash H.M. April 7, 2011, 6:45 a.m. UTC | #2
On Wed, Apr 06, 2011 at 11:28:00AM +0530, Gulati, Shweta wrote:
> Hi,
> 
> On Tue, Apr 5, 2011 at 9:10 PM, Avinash.H.M <avinashhm@ti.com> wrote:
> > GPIO module expects the debounce clocks to be enabled during reset. It doesn't
> > reset properly and timeouts are seen, if this clock isn't enabled during
> > reset. Add the HWMOD_CONTROL_OPT_CLKS_IN_RESET flags to the GPIO HWMODs, with
> > which the debounce clocks are enabled during reset.
> Minor comment,
> Rephrase as " GPIO module doesn't reset properly and timeouts are seen
> during bootup, if
> debounce clock is not enabled"
> to make commit log more clear.


Hi Shweta ,

thanks for the review.

i will fix the rephrase the change log .

br ,

- avinash

> > Cc: Rajendra Nayak <rnayak@ti.com>
> > Cc: Paul Walmsley <paul@pwsan.com>
> > Cc: Benoit Cousson <b-cousson@ti.com>
> > Cc: Kevin Hilman <khilman@ti.com>
> > Signed-off-by: Avinash.H.M <avinashhm@ti.com>
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
index 82ff5f7..e0bda0a 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
@@ -1640,6 +1640,7 @@  static struct omap_hwmod_ocp_if *omap2420_gpio1_slaves[] = {
 
 static struct omap_hwmod omap2420_gpio1_hwmod = {
 	.name		= "gpio1",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap242x_gpio1_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap242x_gpio1_irqs),
 	.main_clk	= "gpios_fck",
@@ -1670,6 +1671,7 @@  static struct omap_hwmod_ocp_if *omap2420_gpio2_slaves[] = {
 
 static struct omap_hwmod omap2420_gpio2_hwmod = {
 	.name		= "gpio2",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap242x_gpio2_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap242x_gpio2_irqs),
 	.main_clk	= "gpios_fck",
@@ -1700,6 +1702,7 @@  static struct omap_hwmod_ocp_if *omap2420_gpio3_slaves[] = {
 
 static struct omap_hwmod omap2420_gpio3_hwmod = {
 	.name		= "gpio3",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap242x_gpio3_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap242x_gpio3_irqs),
 	.main_clk	= "gpios_fck",
@@ -1730,6 +1733,7 @@  static struct omap_hwmod_ocp_if *omap2420_gpio4_slaves[] = {
 
 static struct omap_hwmod omap2420_gpio4_hwmod = {
 	.name		= "gpio4",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap242x_gpio4_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap242x_gpio4_irqs),
 	.main_clk	= "gpios_fck",
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
index ce292f0..99cd7bd 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
@@ -1743,6 +1743,7 @@  static struct omap_hwmod_ocp_if *omap2430_gpio1_slaves[] = {
 
 static struct omap_hwmod omap2430_gpio1_hwmod = {
 	.name		= "gpio1",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap243x_gpio1_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap243x_gpio1_irqs),
 	.main_clk	= "gpios_fck",
@@ -1773,6 +1774,7 @@  static struct omap_hwmod_ocp_if *omap2430_gpio2_slaves[] = {
 
 static struct omap_hwmod omap2430_gpio2_hwmod = {
 	.name		= "gpio2",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap243x_gpio2_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap243x_gpio2_irqs),
 	.main_clk	= "gpios_fck",
@@ -1803,6 +1805,7 @@  static struct omap_hwmod_ocp_if *omap2430_gpio3_slaves[] = {
 
 static struct omap_hwmod omap2430_gpio3_hwmod = {
 	.name		= "gpio3",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap243x_gpio3_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap243x_gpio3_irqs),
 	.main_clk	= "gpios_fck",
@@ -1833,6 +1836,7 @@  static struct omap_hwmod_ocp_if *omap2430_gpio4_slaves[] = {
 
 static struct omap_hwmod omap2430_gpio4_hwmod = {
 	.name		= "gpio4",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap243x_gpio4_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap243x_gpio4_irqs),
 	.main_clk	= "gpios_fck",
@@ -1863,6 +1867,7 @@  static struct omap_hwmod_ocp_if *omap2430_gpio5_slaves[] = {
 
 static struct omap_hwmod omap2430_gpio5_hwmod = {
 	.name		= "gpio5",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap243x_gpio5_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap243x_gpio5_irqs),
 	.main_clk	= "gpio5_fck",
diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index c74f972..7552b2f 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -2142,6 +2142,7 @@  static struct omap_hwmod_ocp_if *omap3xxx_gpio1_slaves[] = {
 
 static struct omap_hwmod omap3xxx_gpio1_hwmod = {
 	.name		= "gpio1",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap3xxx_gpio1_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap3xxx_gpio1_irqs),
 	.main_clk	= "gpio1_ick",
@@ -2178,6 +2179,7 @@  static struct omap_hwmod_ocp_if *omap3xxx_gpio2_slaves[] = {
 
 static struct omap_hwmod omap3xxx_gpio2_hwmod = {
 	.name		= "gpio2",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap3xxx_gpio2_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap3xxx_gpio2_irqs),
 	.main_clk	= "gpio2_ick",
@@ -2214,6 +2216,7 @@  static struct omap_hwmod_ocp_if *omap3xxx_gpio3_slaves[] = {
 
 static struct omap_hwmod omap3xxx_gpio3_hwmod = {
 	.name		= "gpio3",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap3xxx_gpio3_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap3xxx_gpio3_irqs),
 	.main_clk	= "gpio3_ick",
@@ -2250,6 +2253,7 @@  static struct omap_hwmod_ocp_if *omap3xxx_gpio4_slaves[] = {
 
 static struct omap_hwmod omap3xxx_gpio4_hwmod = {
 	.name		= "gpio4",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap3xxx_gpio4_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap3xxx_gpio4_irqs),
 	.main_clk	= "gpio4_ick",
@@ -2286,6 +2290,7 @@  static struct omap_hwmod_ocp_if *omap3xxx_gpio5_slaves[] = {
 
 static struct omap_hwmod omap3xxx_gpio5_hwmod = {
 	.name		= "gpio5",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap3xxx_gpio5_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap3xxx_gpio5_irqs),
 	.main_clk	= "gpio5_ick",
@@ -2322,6 +2327,7 @@  static struct omap_hwmod_ocp_if *omap3xxx_gpio6_slaves[] = {
 
 static struct omap_hwmod omap3xxx_gpio6_hwmod = {
 	.name		= "gpio6",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.mpu_irqs	= omap3xxx_gpio6_irqs,
 	.mpu_irqs_cnt	= ARRAY_SIZE(omap3xxx_gpio6_irqs),
 	.main_clk	= "gpio6_ick",