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Date: Fri, 26 Apr 2019 22:52:13 +0200
From: Alexandre Belloni <alexandre.belloni@...tlin.com>
To: Stephen Boyd <sboyd@...nel.org>
Cc: Michael Turquette <mturquette@...libre.com>,
linux-kernel@...r.kernel.org,
Claudiu Beznea <claudiu.beznea@...rochip.com>,
linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 7/7] clk: at91: add sam9x60 pmc driver
On 25/04/2019 14:14:54-0700, Stephen Boyd wrote:
> Quoting Stephen Boyd (2019-04-25 13:58:10)
> > Quoting Alexandre Belloni (2019-04-25 13:31:39)
> > > On 25/04/2019 12:38:55-0700, Stephen Boyd wrote:
> > > >
> > > > const?
> > > >
> > >
> > > Right, can you fix that up or should I send a new version?
> > >
> >
> > I can fix it.
>
> It's more complicated. I'll pile this patch on top. Maybe other
> static data in drivers/clk/at91 can be const, but this at least covers
> the struct clk_range ones.
>
Seems good to me.
> diff --git a/drivers/clk/at91/at91sam9260.c b/drivers/clk/at91/at91sam9260.c
> index b1af5a395423..0aabe49aed09 100644
> --- a/drivers/clk/at91/at91sam9260.c
> +++ b/drivers/clk/at91/at91sam9260.c
> @@ -41,7 +41,7 @@ static u8 sam9260_plla_out[] = { 0, 2 };
>
> static u16 sam9260_plla_icpll[] = { 1, 1 };
>
> -static struct clk_range sam9260_plla_outputs[] = {
> +static const struct clk_range sam9260_plla_outputs[] = {
> { .min = 80000000, .max = 160000000 },
> { .min = 150000000, .max = 240000000 },
> };
> @@ -58,7 +58,7 @@ static u8 sam9260_pllb_out[] = { 1 };
>
> static u16 sam9260_pllb_icpll[] = { 1 };
>
> -static struct clk_range sam9260_pllb_outputs[] = {
> +static const struct clk_range sam9260_pllb_outputs[] = {
> { .min = 70000000, .max = 130000000 },
> };
>
> @@ -128,7 +128,7 @@ static u8 sam9g20_plla_out[] = { 0, 1, 2, 3, 0, 1, 2, 3 };
>
> static u16 sam9g20_plla_icpll[] = { 0, 0, 0, 0, 1, 1, 1, 1 };
>
> -static struct clk_range sam9g20_plla_outputs[] = {
> +static const struct clk_range sam9g20_plla_outputs[] = {
> { .min = 745000000, .max = 800000000 },
> { .min = 695000000, .max = 750000000 },
> { .min = 645000000, .max = 700000000 },
> @@ -151,7 +151,7 @@ static u8 sam9g20_pllb_out[] = { 0 };
>
> static u16 sam9g20_pllb_icpll[] = { 0 };
>
> -static struct clk_range sam9g20_pllb_outputs[] = {
> +static const struct clk_range sam9g20_pllb_outputs[] = {
> { .min = 30000000, .max = 100000000 },
> };
>
> @@ -182,7 +182,7 @@ static const struct clk_master_characteristics sam9261_mck_characteristics = {
> .divisors = { 1, 2, 4, 0 },
> };
>
> -static struct clk_range sam9261_plla_outputs[] = {
> +static const struct clk_range sam9261_plla_outputs[] = {
> { .min = 80000000, .max = 200000000 },
> { .min = 190000000, .max = 240000000 },
> };
> @@ -199,7 +199,7 @@ static u8 sam9261_pllb_out[] = { 1 };
>
> static u16 sam9261_pllb_icpll[] = { 1 };
>
> -static struct clk_range sam9261_pllb_outputs[] = {
> +static const struct clk_range sam9261_pllb_outputs[] = {
> { .min = 70000000, .max = 130000000 },
> };
>
> @@ -262,7 +262,7 @@ static const struct clk_master_characteristics sam9263_mck_characteristics = {
> .divisors = { 1, 2, 4, 0 },
> };
>
> -static struct clk_range sam9263_pll_outputs[] = {
> +static const struct clk_range sam9263_pll_outputs[] = {
> { .min = 80000000, .max = 200000000 },
> { .min = 190000000, .max = 240000000 },
> };
> diff --git a/drivers/clk/at91/at91sam9rl.c b/drivers/clk/at91/at91sam9rl.c
> index 5aeef68b4bdd..0ac34cdaa106 100644
> --- a/drivers/clk/at91/at91sam9rl.c
> +++ b/drivers/clk/at91/at91sam9rl.c
> @@ -14,7 +14,7 @@ static const struct clk_master_characteristics sam9rl_mck_characteristics = {
>
> static u8 sam9rl_plla_out[] = { 0, 2 };
>
> -static struct clk_range sam9rl_plla_outputs[] = {
> +static const struct clk_range sam9rl_plla_outputs[] = {
> { .min = 80000000, .max = 200000000 },
> { .min = 190000000, .max = 240000000 },
> };
> diff --git a/drivers/clk/at91/at91sam9x5.c b/drivers/clk/at91/at91sam9x5.c
> index f5cfcbd85f10..0855f3a80cc7 100644
> --- a/drivers/clk/at91/at91sam9x5.c
> +++ b/drivers/clk/at91/at91sam9x5.c
> @@ -17,7 +17,7 @@ static u8 plla_out[] = { 0, 1, 2, 3, 0, 1, 2, 3 };
>
> static u16 plla_icpll[] = { 0, 0, 0, 0, 1, 1, 1, 1 };
>
> -static struct clk_range plla_outputs[] = {
> +static const struct clk_range plla_outputs[] = {
> { .min = 745000000, .max = 800000000 },
> { .min = 695000000, .max = 750000000 },
> { .min = 645000000, .max = 700000000 },
> diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
> index fb9e9c4cdc8d..775b77a433f5 100644
> --- a/drivers/clk/at91/pmc.h
> +++ b/drivers/clk/at91/pmc.h
> @@ -66,7 +66,7 @@ extern const struct clk_pll_layout sama5d3_pll_layout;
> struct clk_pll_characteristics {
> struct clk_range input;
> int num_output;
> - struct clk_range *output;
> + const struct clk_range *output;
> u16 *icpll;
> u8 *out;
> u8 upll : 1;
> diff --git a/drivers/clk/at91/sam9x60.c b/drivers/clk/at91/sam9x60.c
> index 864ac060aed6..6340b1fc1828 100644
> --- a/drivers/clk/at91/sam9x60.c
> +++ b/drivers/clk/at91/sam9x60.c
> @@ -21,7 +21,7 @@ static const struct clk_master_layout sam9x60_master_layout = {
> .offset = 0x28,
> };
>
> -static struct clk_range plla_outputs[] = {
> +static const struct clk_range plla_outputs[] = {
> { .min = 300000000, .max = 600000000 },
> };
>
> @@ -31,7 +31,7 @@ static const struct clk_pll_characteristics plla_characteristics = {
> .output = plla_outputs,
> };
>
> -static struct clk_range upll_outputs[] = {
> +static const struct clk_range upll_outputs[] = {
> { .min = 300000000, .max = 500000000 },
> };
>
> diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
> index 096156850e08..f3d3f6c8e261 100644
> --- a/drivers/clk/at91/sama5d2.c
> +++ b/drivers/clk/at91/sama5d2.c
> @@ -16,7 +16,7 @@ static u8 plla_out[] = { 0 };
>
> static u16 plla_icpll[] = { 0 };
>
> -static struct clk_range plla_outputs[] = {
> +static const struct clk_range plla_outputs[] = {
> { .min = 600000000, .max = 1200000000 },
> };
>
> diff --git a/drivers/clk/at91/sama5d4.c b/drivers/clk/at91/sama5d4.c
> index 840edca77821..25b156d4e645 100644
> --- a/drivers/clk/at91/sama5d4.c
> +++ b/drivers/clk/at91/sama5d4.c
> @@ -16,7 +16,7 @@ static u8 plla_out[] = { 0 };
>
> static u16 plla_icpll[] = { 0 };
>
> -static struct clk_range plla_outputs[] = {
> +static const struct clk_range plla_outputs[] = {
> { .min = 600000000, .max = 1200000000 },
> };
>
--
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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