From mboxrd@z Thu Jan  1 00:00:00 1970
From: l.stach@pengutronix.de (Lucas Stach)
Date: Mon, 18 Jun 2018 12:13:26 +0200
Subject: [PATCH v2] soc: imx: gpc: fix PDN delay & improve readability
In-Reply-To: <1529316704661.7268@mixed-mode.de>
References: <1529312474617.59395@mixed-mode.de>
 ,<1529314029.3684.2.camel@pengutronix.de> <1529316704661.7268@mixed-mode.de>
Message-ID: <1529316806.3684.7.camel@pengutronix.de>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Am Montag, den 18.06.2018, 10:11 +0000 schrieb Sven Schmitt:
> - imx6_pm_domain_power_off(): reads iso and iso2sw
> ? from GPC_PGC_PUPSCR_OFFS which stores the power up delays
> ? => use GPC_PGC_PDNSCR_OFFS for the correct delays
> 
> - remove unused #defines
> 
> - GPC_PGC_DOMAIN_*: made consistent use of index defines
> 
> Signed-off-by: Sven Schmitt <sven.schmitt@mixed-mode.de>

Reviewed-by: Lucas Stach <l.stach@pengutronix.de>

> ---
> Changes in v2:
> * dropped cntr_pup_bit
> 
> ?drivers/soc/imx/gpc.c | 35 +++++++++++++++--------------------
> ?1 file changed, 15 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/soc/imx/gpc.c b/drivers/soc/imx/gpc.c
> index c4d35f32af8d..aa13180cfcfc 100644
> --- a/drivers/soc/imx/gpc.c
> +++ b/drivers/soc/imx/gpc.c
> @@ -24,15 +24,6 @@
> > ?#define GPC_PGC_CTRL_OFFS	0x0
> > ?#define GPC_PGC_PUPSCR_OFFS	0x4
> > ?#define GPC_PGC_PDNSCR_OFFS	0x8
> > -#define GPC_PGC_SW2ISO_SHIFT	0x8
> > -#define GPC_PGC_SW_SHIFT	0x0
> -
> > -#define GPC_PGC_GPU_PDN		0x260
> > -#define GPC_PGC_GPU_PUPSCR	0x264
> > -#define GPC_PGC_GPU_PDNSCR	0x268
> -
> > -#define GPU_VPU_PUP_REQ		BIT(1)
> > -#define GPU_VPU_PDN_REQ		BIT(0)
> ?
> > ?#define GPC_CLK_MAX		6
> ?
> @@ -66,7 +57,7 @@ static int imx6_pm_domain_power_off(struct generic_pm_domain *genpd)
> > ?		return -EBUSY;
> ?
> > ?	/* Read ISO and ISO2SW power down delays */
> > -	regmap_read(pd->regmap, pd->reg_offs + GPC_PGC_PUPSCR_OFFS, &val);
> > +	regmap_read(pd->regmap, pd->reg_offs + GPC_PGC_PDNSCR_OFFS, &val);
> > ?	iso = val & 0x3f;
> > ?	iso2sw = (val >> 8) & 0x3f;
> ?
> @@ -241,22 +232,24 @@ static struct platform_driver imx_pgc_power_domain_driver = {
> ?};
> ?builtin_platform_driver(imx_pgc_power_domain_driver)
> ?
> > -#define GPC_PGC_DOMAIN_ARM	0
> > -#define GPC_PGC_DOMAIN_PU	1
> > -#define GPC_PGC_DOMAIN_DISPLAY	2
> -
> ?static struct genpd_power_state imx6_pm_domain_pu_state = {
> > ?	.power_off_latency_ns = 25000,
> > ?	.power_on_latency_ns = 2000000,
> ?};
> ?
> +#define GPC_PGC_DOMAIN_ARM 0
> +#define GPC_PGC_DOMAIN_PU 1
> +#define GPC_PGC_DOMAIN_DISPLAY 2
> +#define GPC_PGC_DOMAIN_PCI 3
> +
> ?static struct imx_pm_domain imx_gpc_domains[] = {
> > -	{
> > +	[GPC_PGC_DOMAIN_ARM] {
> > ?		.base = {
> > ?			.name = "ARM",
> > ?			.flags = GENPD_FLAG_ALWAYS_ON,
> > ?		},
> > -	}, {
> > +	},
> > +	[GPC_PGC_DOMAIN_PU] {
> > ?		.base = {
> > ?			.name = "PU",
> > ?			.power_off = imx6_pm_domain_power_off,
> @@ -266,7 +259,8 @@ static struct imx_pm_domain imx_gpc_domains[] = {
> > ?		},
> > ?		.reg_offs = 0x260,
> > ?		.cntr_pdn_bit = 0,
> > -	}, {
> > +	},
> > +	[GPC_PGC_DOMAIN_DISPLAY] {
> > ?		.base = {
> > ?			.name = "DISPLAY",
> > ?			.power_off = imx6_pm_domain_power_off,
> @@ -274,7 +268,8 @@ static struct imx_pm_domain imx_gpc_domains[] = {
> > ?		},
> > ?		.reg_offs = 0x240,
> > ?		.cntr_pdn_bit = 4,
> > -	}, {
> > +	},
> > +	[GPC_PGC_DOMAIN_PCI] {
> > ?		.base = {
> > ?			.name = "PCI",
> > ?			.power_off = imx6_pm_domain_power_off,
> @@ -326,8 +321,8 @@ static const struct regmap_config imx_gpc_regmap_config = {
> ?};
> ?
> ?static struct generic_pm_domain *imx_gpc_onecell_domains[] = {
> > -	&imx_gpc_domains[0].base,
> > -	&imx_gpc_domains[1].base,
> > +	&imx_gpc_domains[GPC_PGC_DOMAIN_ARM].base,
> > +	&imx_gpc_domains[GPC_PGC_DOMAIN_PU].base,
> ?};
> ?
> ?static struct genpd_onecell_data imx_gpc_onecell_data = {