Re: [PATCH v6 21/41] ARM: da850: add new clock init using common clock framework
On 02/02/2018 08:20 AM, Sekhar Nori wrote:
On Saturday 20 January 2018 10:44 PM, David Lechner wrote:
void __init da850_init_time(void)
{
+#ifdef CONFIG_COMMON_CLK
+ void __iomem *pll0, *pll1, *psc0, *psc1;
+ struct regmap *cfgchip;
+ struct clk *clk;
+ struct clk_hw *parent;
+
+ pll0 = ioremap(DA8XX_PLL0_BASE, SZ_4K);
+ pll1 = ioremap(DA850_PLL1_BASE, SZ_4K);
+ psc0 = ioremap(DA8XX_PSC0_BASE, SZ_4K);
+ psc1 = ioremap(DA8XX_PSC1_BASE, SZ_4K);
+
+ cfgchip = da8xx_register_cfgchip();
+ if (WARN(IS_ERR(cfgchip), "failed to register CFGCHIP syscon"))
+ return;
+
+ clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, DA850_REF_FREQ);
+
+ da850_pll_clk_init(pll0, pll1);
+
+ da8xx_cfgchip_register_div4p5(cfgchip);
+
+ da8xx_cfgchip_register_async1(cfgchip);
+
+ clk = clk_register_fixed_factor(NULL, "async2", "pll0_auxclk", 0, 1, 1);
+ clk_register_clkdev(clk, NULL, "i2c_davinci.1");
+ clk_register_clkdev(clk, "timer0", NULL);
+ clk_register_clkdev(clk, NULL, "davinci-wdt");
I think its better to get these clkdevs registered in
da850_pll_clk_init() itself.
Sounds good to me.
+
+ clk = da8xx_cfgchip_register_async3(cfgchip);
+
+ /* pll1_sysclk2 is not affected by CPU scaling, so use it for async3 */
+ parent = clk_hw_get_parent_by_index(__clk_get_hw(clk), 1);
+ if (parent)
+ clk_set_parent(clk, parent->clk);
+ else
+ pr_warn("%s: Failed to find async3 parent clock\n", __func__);
+
+ da850_psc_clk_init(psc0, psc1);
+
+ clk = clk_register_fixed_factor(NULL, "rmii", "pll0_sysclk7", 0, 1, 1);
+ clk_register_clkdev(clk, "rmii", NULL);
Like in da830, can drop this rmii clock, I think.
Thanks,
Sekhar
Re: [PATCH v6 21/41] ARM: da850: add new clock init using common clock framework
On 02/02/2018 08:20 AM, Sekhar Nori wrote:
On Saturday 20 January 2018 10:44 PM, David Lechner wrote:
void __init da850_init_time(void)
{
+#ifdef CONFIG_COMMON_CLK
+ void __iomem *pll0, *pll1, *psc0, *psc1;
+ struct regmap *cfgchip;
+ struct clk *clk;
+ struct clk_hw *parent;
+
+ pll0 = ioremap(DA8XX_PLL0_BASE, SZ_4K);
+ pll1 = ioremap(DA850_PLL1_BASE, SZ_4K);
+ psc0 = ioremap(DA8XX_PSC0_BASE, SZ_4K);
+ psc1 = ioremap(DA8XX_PSC1_BASE, SZ_4K);
+
+ cfgchip = da8xx_register_cfgchip();
+ if (WARN(IS_ERR(cfgchip), "failed to register CFGCHIP syscon"))
+ return;
+
+ clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, DA850_REF_FREQ);
+
+ da850_pll_clk_init(pll0, pll1);
+
+ da8xx_cfgchip_register_div4p5(cfgchip);
+
+ da8xx_cfgchip_register_async1(cfgchip);
+
+ clk = clk_register_fixed_factor(NULL, "async2", "pll0_auxclk", 0, 1, 1);
+ clk_register_clkdev(clk, NULL, "i2c_davinci.1");
+ clk_register_clkdev(clk, "timer0", NULL);
+ clk_register_clkdev(clk, NULL, "davinci-wdt");
I think its better to get these clkdevs registered in
da850_pll_clk_init() itself.
Sounds good to me.
+
+ clk = da8xx_cfgchip_register_async3(cfgchip);
+
+ /* pll1_sysclk2 is not affected by CPU scaling, so use it for async3 */
+ parent = clk_hw_get_parent_by_index(__clk_get_hw(clk), 1);
+ if (parent)
+ clk_set_parent(clk, parent->clk);
+ else
+ pr_warn("%s: Failed to find async3 parent clock\n", __func__);
+
+ da850_psc_clk_init(psc0, psc1);
+
+ clk = clk_register_fixed_factor(NULL, "rmii", "pll0_sysclk7", 0, 1, 1);
+ clk_register_clkdev(clk, "rmii", NULL);
Like in da830, can drop this rmii clock, I think.
Thanks,
Sekhar
Re: [PATCH v6 21/41] ARM: da850: add new clock init using common clock framework
On Saturday 20 January 2018 10:44 PM, David Lechner wrote:
> void __init da850_init_time(void)
> {
> +#ifdef CONFIG_COMMON_CLK
> + void __iomem *pll0, *pll1, *psc0, *psc1;
> + struct regmap *cfgchip;
> + struct clk *clk;
> + struct clk_hw *parent;
> +
> + pll0 = ioremap(DA8XX_PLL0_BASE, SZ_4K);
> + pll1 = ioremap(DA850_PLL1_BASE, SZ_4K);
> + psc0 = ioremap(DA8XX_PSC0_BASE, SZ_4K);
> + psc1 = ioremap(DA8XX_PSC1_BASE, SZ_4K);
> +
> + cfgchip = da8xx_register_cfgchip();
> + if (WARN(IS_ERR(cfgchip), "failed to register CFGCHIP syscon"))
> + return;
> +
> + clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, DA850_REF_FREQ);
> +
> + da850_pll_clk_init(pll0, pll1);
> +
> + da8xx_cfgchip_register_div4p5(cfgchip);
> +
> + da8xx_cfgchip_register_async1(cfgchip);
> +
> + clk = clk_register_fixed_factor(NULL, "async2", "pll0_auxclk", 0, 1, 1);
> + clk_register_clkdev(clk, NULL, "i2c_davinci.1");
> + clk_register_clkdev(clk, "timer0", NULL);
> + clk_register_clkdev(clk, NULL, "davinci-wdt");
I think its better to get these clkdevs registered in
da850_pll_clk_init() itself.
> +
> + clk = da8xx_cfgchip_register_async3(cfgchip);
> +
> + /* pll1_sysclk2 is not affected by CPU scaling, so use it for async3 */
> + parent = clk_hw_get_parent_by_index(__clk_get_hw(clk), 1);
> + if (parent)
> + clk_set_parent(clk, parent->clk);
> + else
> + pr_warn("%s: Failed to find async3 parent clock\n", __func__);
> +
> + da850_psc_clk_init(psc0, psc1);
> +
> + clk = clk_register_fixed_factor(NULL, "rmii", "pll0_sysclk7", 0, 1, 1);
> + clk_register_clkdev(clk, "rmii", NULL);
Like in da830, can drop this rmii clock, I think.
Thanks,
Sekhar
Re: [PATCH v6 21/41] ARM: da850: add new clock init using common clock framework
On Saturday 20 January 2018 10:44 PM, David Lechner wrote:
> void __init da850_init_time(void)
> {
> +#ifdef CONFIG_COMMON_CLK
> + void __iomem *pll0, *pll1, *psc0, *psc1;
> + struct regmap *cfgchip;
> + struct clk *clk;
> + struct clk_hw *parent;
> +
> + pll0 = ioremap(DA8XX_PLL0_BASE, SZ_4K);
> + pll1 = ioremap(DA850_PLL1_BASE, SZ_4K);
> + psc0 = ioremap(DA8XX_PSC0_BASE, SZ_4K);
> + psc1 = ioremap(DA8XX_PSC1_BASE, SZ_4K);
> +
> + cfgchip = da8xx_register_cfgchip();
> + if (WARN(IS_ERR(cfgchip), "failed to register CFGCHIP syscon"))
> + return;
> +
> + clk_register_fixed_rate(NULL, "ref_clk", NULL, 0, DA850_REF_FREQ);
> +
> + da850_pll_clk_init(pll0, pll1);
> +
> + da8xx_cfgchip_register_div4p5(cfgchip);
> +
> + da8xx_cfgchip_register_async1(cfgchip);
> +
> + clk = clk_register_fixed_factor(NULL, "async2", "pll0_auxclk", 0, 1, 1);
> + clk_register_clkdev(clk, NULL, "i2c_davinci.1");
> + clk_register_clkdev(clk, "timer0", NULL);
> + clk_register_clkdev(clk, NULL, "davinci-wdt");
I think its better to get these clkdevs registered in
da850_pll_clk_init() itself.
> +
> + clk = da8xx_cfgchip_register_async3(cfgchip);
> +
> + /* pll1_sysclk2 is not affected by CPU scaling, so use it for async3 */
> + parent = clk_hw_get_parent_by_index(__clk_get_hw(clk), 1);
> + if (parent)
> + clk_set_parent(clk, parent->clk);
> + else
> + pr_warn("%s: Failed to find async3 parent clock\n", __func__);
> +
> + da850_psc_clk_init(psc0, psc1);
> +
> + clk = clk_register_fixed_factor(NULL, "rmii", "pll0_sysclk7", 0, 1, 1);
> + clk_register_clkdev(clk, "rmii", NULL);
Like in da830, can drop this rmii clock, I think.
Thanks,
Sekhar
