diff mbox

[PATCH-V2] ARM: OMAP2+: AM33xx: Fix missing reset status data to GFX hwmod

Message ID 1369057116-31423-1-git-send-email-hvaibhav@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Vaibhav Hiremath May 20, 2013, 1:38 p.m. UTC
GFX has a reset status register (PRM_GFX.RM_GFX_RSTST),
so update the GFX hwmod data with .rstst_off and .st_shift
information.

Although it doesn't have impact on kernel boot, but this is
regression fix from original hwmod commit.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
---
Changes from V1 (No code change):
	- Updated commit description to mention its regression
	  from original commit.

 arch/arm/mach-omap2/omap_hwmod_33xx_data.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

--
1.7.0.4

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Comments

Paul Walmsley May 20, 2013, 2:39 p.m. UTC | #1
On Mon, 20 May 2013, Vaibhav Hiremath wrote:

> GFX has a reset status register (PRM_GFX.RM_GFX_RSTST),
> so update the GFX hwmod data with .rstst_off and .st_shift
> information.
> 
> Although it doesn't have impact on kernel boot, but this is
> regression fix from original hwmod commit.
> 

Did it ever work?  If not, then it's not a regression, right?


- Paul
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Vaibhav Hiremath May 20, 2013, 5:55 p.m. UTC | #2
> -----Original Message-----
> From: Paul Walmsley [mailto:paul@pwsan.com]
> Sent: Monday, May 20, 2013 8:09 PM
> To: Hiremath, Vaibhav
> Cc: linux-omap@vger.kernel.org; tony@atomide.com; linux-arm-
> kernel@lists.infradead.org
> Subject: Re: [PATCH-V2] ARM: OMAP2+: AM33xx: Fix missing reset status
> data to GFX hwmod
> 
> On Mon, 20 May 2013, Vaibhav Hiremath wrote:
> 
> > GFX has a reset status register (PRM_GFX.RM_GFX_RSTST),
> > so update the GFX hwmod data with .rstst_off and .st_shift
> > information.
> >
> > Although it doesn't have impact on kernel boot, but this is
> > regression fix from original hwmod commit.
> >
> 
> Did it ever work?  If not, then it's not a regression, right?
> 

As we know none of the GFX sw is available in the mainline, so never got
exercised so far; but kernel boots up fine without any issues.
I was also confused a bit on this, but then thought, this could be regression
As it is fixing wrong/missing data without which GFX will not work.
May be I was wrong.

Thanks,
Vaibhav
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diff mbox

Patch

diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
index d1cf3ab..38c7b04 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
@@ -329,7 +329,7 @@  static struct omap_hwmod_class am33xx_gfx_hwmod_class = {
 };

 static struct omap_hwmod_rst_info am33xx_gfx_resets[] = {
-	{ .name = "gfx", .rst_shift = 0 },
+	{ .name = "gfx", .rst_shift = 0, .st_shift = 0},
 };

 static struct omap_hwmod_irq_info am33xx_gfx_irqs[] = {
@@ -347,6 +347,7 @@  static struct omap_hwmod am33xx_gfx_hwmod = {
 		.omap4	= {
 			.clkctrl_offs	= AM33XX_CM_GFX_GFX_CLKCTRL_OFFSET,
 			.rstctrl_offs	= AM33XX_RM_GFX_RSTCTRL_OFFSET,
+			.rstst_offs	= AM33XX_RM_GFX_RSTST_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},