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* [PATCH] ARM: OMAP2+: am43xx: Add lcdc clockdomain
@ 2019-12-11 20:25 ` Dave Gerlach
  0 siblings, 0 replies; 4+ messages in thread
From: Dave Gerlach @ 2019-12-11 20:25 UTC (permalink / raw)
  To: linux-arm-kernel, linux-omap; +Cc: Tony Lindgren, Dave Gerlach

As described in AM437x TRM, spruhl7h, Revised January 2018, there is
an LCDC clockdomain present in the PER power domain. Although it is
entirely unused on AM437x, it should be defined along with the other
clockdomains so it can be shut off by Linux as there are no users.

Reported-by: Munan Xu <munan@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
---
 arch/arm/mach-omap2/clockdomains43xx_data.c | 10 ++++++++++
 arch/arm/mach-omap2/prcm43xx.h              |  1 +
 2 files changed, 11 insertions(+)

diff --git a/arch/arm/mach-omap2/clockdomains43xx_data.c b/arch/arm/mach-omap2/clockdomains43xx_data.c
index 751708d727af..c96a2b1efbad 100644
--- a/arch/arm/mach-omap2/clockdomains43xx_data.c
+++ b/arch/arm/mach-omap2/clockdomains43xx_data.c
@@ -84,6 +84,15 @@ static struct clockdomain l3s_tsc_43xx_clkdm = {
 	.flags		  = CLKDM_CAN_SWSUP,
 };
 
+static struct clockdomain lcdc_43xx_clkdm = {
+	.name		  = "lcdc_clkdm",
+	.pwrdm		  = { .name = "per_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_PER_INST,
+	.clkdm_offs	  = AM43XX_CM_PER_LCDC_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
 static struct clockdomain dss_43xx_clkdm = {
 	.name		  = "dss_clkdm",
 	.pwrdm		  = { .name = "per_pwrdm" },
@@ -173,6 +182,7 @@ static struct clockdomain *clockdomains_am43xx[] __initdata = {
 	&pruss_ocp_43xx_clkdm,
 	&ocpwp_l3_43xx_clkdm,
 	&l3s_tsc_43xx_clkdm,
+	&lcdc_43xx_clkdm,
 	&dss_43xx_clkdm,
 	&l3_aon_43xx_clkdm,
 	&emif_43xx_clkdm,
diff --git a/arch/arm/mach-omap2/prcm43xx.h b/arch/arm/mach-omap2/prcm43xx.h
index e2ad14e77064..7078a61c1d3f 100644
--- a/arch/arm/mach-omap2/prcm43xx.h
+++ b/arch/arm/mach-omap2/prcm43xx.h
@@ -68,6 +68,7 @@
 #define AM43XX_CM_PER_ICSS_CDOFFS			0x0300
 #define AM43XX_CM_PER_L4LS_CDOFFS			0x0400
 #define AM43XX_CM_PER_EMIF_CDOFFS			0x0700
+#define AM43XX_CM_PER_LCDC_CDOFFS			0x0800
 #define AM43XX_CM_PER_DSS_CDOFFS			0x0a00
 #define AM43XX_CM_PER_CPSW_CDOFFS			0x0b00
 #define AM43XX_CM_PER_OCPWP_L3_CDOFFS			0x0c00
-- 
2.20.1

^ permalink raw reply related	[flat|nested] 4+ messages in thread
* [PATCH] ARM: OMAP2+: am43xx: Add lcdc clockdomain
@ 2019-12-11 20:25 ` Dave Gerlach
  0 siblings, 0 replies; 4+ messages in thread
From: Dave Gerlach @ 2019-12-11 20:25 UTC (permalink / raw)
  To: linux-arm-kernel, linux-omap; +Cc: Tony Lindgren, Dave Gerlach

As described in AM437x TRM, spruhl7h, Revised January 2018, there is
an LCDC clockdomain present in the PER power domain. Although it is
entirely unused on AM437x, it should be defined along with the other
clockdomains so it can be shut off by Linux as there are no users.

Reported-by: Munan Xu <munan@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
---
 arch/arm/mach-omap2/clockdomains43xx_data.c | 10 ++++++++++
 arch/arm/mach-omap2/prcm43xx.h              |  1 +
 2 files changed, 11 insertions(+)

diff --git a/arch/arm/mach-omap2/clockdomains43xx_data.c b/arch/arm/mach-omap2/clockdomains43xx_data.c
index 751708d727af..c96a2b1efbad 100644
--- a/arch/arm/mach-omap2/clockdomains43xx_data.c
+++ b/arch/arm/mach-omap2/clockdomains43xx_data.c
@@ -84,6 +84,15 @@ static struct clockdomain l3s_tsc_43xx_clkdm = {
 	.flags		  = CLKDM_CAN_SWSUP,
 };
 
+static struct clockdomain lcdc_43xx_clkdm = {
+	.name		  = "lcdc_clkdm",
+	.pwrdm		  = { .name = "per_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_PER_INST,
+	.clkdm_offs	  = AM43XX_CM_PER_LCDC_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
 static struct clockdomain dss_43xx_clkdm = {
 	.name		  = "dss_clkdm",
 	.pwrdm		  = { .name = "per_pwrdm" },
@@ -173,6 +182,7 @@ static struct clockdomain *clockdomains_am43xx[] __initdata = {
 	&pruss_ocp_43xx_clkdm,
 	&ocpwp_l3_43xx_clkdm,
 	&l3s_tsc_43xx_clkdm,
+	&lcdc_43xx_clkdm,
 	&dss_43xx_clkdm,
 	&l3_aon_43xx_clkdm,
 	&emif_43xx_clkdm,
diff --git a/arch/arm/mach-omap2/prcm43xx.h b/arch/arm/mach-omap2/prcm43xx.h
index e2ad14e77064..7078a61c1d3f 100644
--- a/arch/arm/mach-omap2/prcm43xx.h
+++ b/arch/arm/mach-omap2/prcm43xx.h
@@ -68,6 +68,7 @@
 #define AM43XX_CM_PER_ICSS_CDOFFS			0x0300
 #define AM43XX_CM_PER_L4LS_CDOFFS			0x0400
 #define AM43XX_CM_PER_EMIF_CDOFFS			0x0700
+#define AM43XX_CM_PER_LCDC_CDOFFS			0x0800
 #define AM43XX_CM_PER_DSS_CDOFFS			0x0a00
 #define AM43XX_CM_PER_CPSW_CDOFFS			0x0b00
 #define AM43XX_CM_PER_OCPWP_L3_CDOFFS			0x0c00
-- 
2.20.1


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linux-arm-kernel mailing list
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 4+ messages in thread
* Re: [PATCH] ARM: OMAP2+: am43xx: Add lcdc clockdomain
  2019-12-11 20:25 ` Dave Gerlach
@ 2019-12-12 17:42   ` Tony Lindgren
  -1 siblings, 0 replies; 4+ messages in thread
From: Tony Lindgren @ 2019-12-12 17:42 UTC (permalink / raw)
  To: Dave Gerlach; +Cc: linux-omap, linux-arm-kernel

* Dave Gerlach <d-gerlach@ti.com> [191211 12:25]:
> As described in AM437x TRM, spruhl7h, Revised January 2018, there is
> an LCDC clockdomain present in the PER power domain. Although it is
> entirely unused on AM437x, it should be defined along with the other
> clockdomains so it can be shut off by Linux as there are no users.

Thanks applying into omap-for-v5.6/soc.

Regards,

Tony

^ permalink raw reply	[flat|nested] 4+ messages in thread
* Re: [PATCH] ARM: OMAP2+: am43xx: Add lcdc clockdomain
@ 2019-12-12 17:42   ` Tony Lindgren
  0 siblings, 0 replies; 4+ messages in thread
From: Tony Lindgren @ 2019-12-12 17:42 UTC (permalink / raw)
  To: Dave Gerlach; +Cc: linux-omap, linux-arm-kernel

* Dave Gerlach <d-gerlach@ti.com> [191211 12:25]:
> As described in AM437x TRM, spruhl7h, Revised January 2018, there is
> an LCDC clockdomain present in the PER power domain. Although it is
> entirely unused on AM437x, it should be defined along with the other
> clockdomains so it can be shut off by Linux as there are no users.

Thanks applying into omap-for-v5.6/soc.

Regards,

Tony

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-12-12 17:43 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-11 20:25 [PATCH] ARM: OMAP2+: am43xx: Add lcdc clockdomain Dave Gerlach
2019-12-11 20:25 ` Dave Gerlach
2019-12-12 17:42 ` Tony Lindgren
2019-12-12 17:42   ` Tony Lindgren

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