From: Nishanth Menon <nm@ti.com> To: linux-omap@vger.kernel.org Cc: "Rob Herring" <robherring2@gmail.com>, cpufreq@vger.kernel.org, linux-pm@vger.kernel.org, "Nishanth Menon" <nm@ti.com>, "Kevin Hilman" <khilman@linaro.org>, "Rajendra Nayak" <rnayak@ti.com>, "Paul Walmsley" <paul@pwsan.com>, "Benoît Cousson" <b-cousson@ti.com>, "Jon Hunter" <jon-hunter@ti.com>, Keerthy <j-keerthy@ti.com>, "Santosh Shilimkar" <santosh.shilimkar@ti.com>, "Shawn Guo" <shawn.guo@linaro.org> Subject: [PATCH V3 1/2] ARM: OMAP3+: use cpu0-cpufreq driver in device tree supported boot Date: Thu, 28 Mar 2013 16:52:55 -0500 [thread overview] Message-ID: <1364507576-19345-2-git-send-email-nm@ti.com> (raw) In-Reply-To: <1364507576-19345-1-git-send-email-nm@ti.com> With OMAP3+ and AM33xx supported SoC having defined CPU device tree entries with operating-points defined, we can now use the SoC generic cpufreq-cpu0 driver by registering appropriate device. As part of this change, add dummy clock node to use cpufreq-cpu0. This is an suggested solution till we have OMAP clock nodes in device tree. Once the OMAP device tree conversion is complete, we can then do: clocks = <&dpll_mpu_ck>; or the SoC specific equivalent. Inspired by patch: https://patchwork.kernel.org/patch/2067841/ now made generic. Cc: Kevin Hilman <khilman@linaro.org> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: "Benoît Cousson" <b-cousson@ti.com> Cc: Jon Hunter <jon-hunter@ti.com> Cc: Keerthy <j-keerthy@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Nishanth Menon <nm@ti.com> --- Changes in v3: - modified CC list. - no functional change V2: https://patchwork.kernel.org/patch/2303471/ V1: https://patchwork.kernel.org/patch/2273571/ arch/arm/mach-omap2/board-generic.c | 5 +++++ arch/arm/mach-omap2/cclock33xx_data.c | 2 +- arch/arm/mach-omap2/cclock3xxx_data.c | 3 ++- arch/arm/mach-omap2/cclock44xx_data.c | 3 ++- 4 files changed, 10 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index afa509a..5b147ef 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -49,6 +49,11 @@ static void __init omap_generic_init(void) omap4_panda_display_init_of(); else if (of_machine_is_compatible("ti,omap4-sdp")) omap_4430sdp_display_init_of(); + + if (IS_ENABLED(CONFIG_GENERIC_CPUFREQ_CPU0)) { + struct platform_device_info devinfo = { .name = "cpufreq-cpu0", }; + platform_device_register_full(&devinfo); + } } #ifdef CONFIG_SOC_OMAP2420 diff --git a/arch/arm/mach-omap2/cclock33xx_data.c b/arch/arm/mach-omap2/cclock33xx_data.c index 476b820..cf7e736 100644 --- a/arch/arm/mach-omap2/cclock33xx_data.c +++ b/arch/arm/mach-omap2/cclock33xx_data.c @@ -852,7 +852,7 @@ static struct omap_clk am33xx_clks[] = { CLK(NULL, "dpll_core_m5_ck", &dpll_core_m5_ck, CK_AM33XX), CLK(NULL, "dpll_core_m6_ck", &dpll_core_m6_ck, CK_AM33XX), CLK(NULL, "dpll_mpu_ck", &dpll_mpu_ck, CK_AM33XX), - CLK("cpu0", NULL, &dpll_mpu_ck, CK_AM33XX), + CLK("cpufreq-cpu0.0", NULL, &dpll_mpu_ck, CK_AM33XX), CLK(NULL, "dpll_mpu_m2_ck", &dpll_mpu_m2_ck, CK_AM33XX), CLK(NULL, "dpll_ddr_ck", &dpll_ddr_ck, CK_AM33XX), CLK(NULL, "dpll_ddr_m2_ck", &dpll_ddr_m2_ck, CK_AM33XX), diff --git a/arch/arm/mach-omap2/cclock3xxx_data.c b/arch/arm/mach-omap2/cclock3xxx_data.c index 4579c3c..5a5b471 100644 --- a/arch/arm/mach-omap2/cclock3xxx_data.c +++ b/arch/arm/mach-omap2/cclock3xxx_data.c @@ -3501,7 +3501,8 @@ static struct omap_clk omap3xxx_clks[] = { CLK(NULL, "uart4_ick", &uart4_ick_am35xx, CK_AM35XX), CLK(NULL, "timer_32k_ck", &omap_32k_fck, CK_3XXX), CLK(NULL, "timer_sys_ck", &sys_ck, CK_3XXX), - CLK(NULL, "cpufreq_ck", &dpll1_ck, CK_3XXX), + CLK(NULL, "cpufreq_ck", &dpll1_ck, CK_3XXX), /* used in non-device tree boot */ + CLK("cpufreq-cpu0.0", NULL, &dpll1_ck, CK_3XXX), /* used in device tree boot */ }; static const char *enable_init_clks[] = { diff --git a/arch/arm/mach-omap2/cclock44xx_data.c b/arch/arm/mach-omap2/cclock44xx_data.c index 3d58f33..bcea785 100644 --- a/arch/arm/mach-omap2/cclock44xx_data.c +++ b/arch/arm/mach-omap2/cclock44xx_data.c @@ -1660,7 +1660,8 @@ static struct omap_clk omap44xx_clks[] = { CLK("4013a000.timer", "timer_sys_ck", &syc_clk_div_ck, CK_443X), CLK("4013c000.timer", "timer_sys_ck", &syc_clk_div_ck, CK_443X), CLK("4013e000.timer", "timer_sys_ck", &syc_clk_div_ck, CK_443X), - CLK(NULL, "cpufreq_ck", &dpll_mpu_ck, CK_443X), + CLK(NULL, "cpufreq_ck", &dpll_mpu_ck, CK_443X), /* used in non-device tree boot */ + CLK("cpufreq-cpu0.0", NULL, &dpll_mpu_ck, CK_443X), /* used in device tree boot */ }; int __init omap4xxx_clk_init(void) -- 1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: Nishanth Menon <nm@ti.com> To: linux-omap@vger.kernel.org Cc: "Rob Herring" <robherring2@gmail.com>, cpufreq@vger.kernel.org, linux-pm@vger.kernel.org, "Nishanth Menon" <nm@ti.com>, "Kevin Hilman" <khilman@linaro.org>, "Rajendra Nayak" <rnayak@ti.com>, "Paul Walmsley" <paul@pwsan.com>, "Benoît Cousson" <b-cousson@ti.com>, "Jon Hunter" <jon-hunter@ti.com>, Keerthy <j-keerthy@ti.com>, "Santosh Shilimkar" <santosh.shilimkar@ti.com>, "Shawn Guo" <shawn.guo@linaro.org> Subject: [PATCH V3 1/2] ARM: OMAP3+: use cpu0-cpufreq driver in device tree supported boot Date: Thu, 28 Mar 2013 16:52:55 -0500 [thread overview] Message-ID: <1364507576-19345-2-git-send-email-nm@ti.com> (raw) In-Reply-To: <1364507576-19345-1-git-send-email-nm@ti.com> With OMAP3+ and AM33xx supported SoC having defined CPU device tree entries with operating-points defined, we can now use the SoC generic cpufreq-cpu0 driver by registering appropriate device. As part of this change, add dummy clock node to use cpufreq-cpu0. This is an suggested solution till we have OMAP clock nodes in device tree. Once the OMAP device tree conversion is complete, we can then do: clocks = <&dpll_mpu_ck>; or the SoC specific equivalent. Inspired by patch: https://patchwork.kernel.org/patch/2067841/ now made generic. Cc: Kevin Hilman <khilman@linaro.org> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: "Beno√Æt Cousson" <b-cousson@ti.com> Cc: Jon Hunter <jon-hunter@ti.com> Cc: Keerthy <j-keerthy@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Nishanth Menon <nm@ti.com> --- Changes in v3: - modified CC list. - no functional change V2: https://patchwork.kernel.org/patch/2303471/ V1: https://patchwork.kernel.org/patch/2273571/ arch/arm/mach-omap2/board-generic.c | 5 +++++ arch/arm/mach-omap2/cclock33xx_data.c | 2 +- arch/arm/mach-omap2/cclock3xxx_data.c | 3 ++- arch/arm/mach-omap2/cclock44xx_data.c | 3 ++- 4 files changed, 10 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index afa509a..5b147ef 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -49,6 +49,11 @@ static void __init omap_generic_init(void) omap4_panda_display_init_of(); else if (of_machine_is_compatible("ti,omap4-sdp")) omap_4430sdp_display_init_of(); + + if (IS_ENABLED(CONFIG_GENERIC_CPUFREQ_CPU0)) { + struct platform_device_info devinfo = { .name = "cpufreq-cpu0", }; + platform_device_register_full(&devinfo); + } } #ifdef CONFIG_SOC_OMAP2420 diff --git a/arch/arm/mach-omap2/cclock33xx_data.c b/arch/arm/mach-omap2/cclock33xx_data.c index 476b820..cf7e736 100644 --- a/arch/arm/mach-omap2/cclock33xx_data.c +++ b/arch/arm/mach-omap2/cclock33xx_data.c @@ -852,7 +852,7 @@ static struct omap_clk am33xx_clks[] = { CLK(NULL, "dpll_core_m5_ck", &dpll_core_m5_ck, CK_AM33XX), CLK(NULL, "dpll_core_m6_ck", &dpll_core_m6_ck, CK_AM33XX), CLK(NULL, "dpll_mpu_ck", &dpll_mpu_ck, CK_AM33XX), - CLK("cpu0", NULL, &dpll_mpu_ck, CK_AM33XX), + CLK("cpufreq-cpu0.0", NULL, &dpll_mpu_ck, CK_AM33XX), CLK(NULL, "dpll_mpu_m2_ck", &dpll_mpu_m2_ck, CK_AM33XX), CLK(NULL, "dpll_ddr_ck", &dpll_ddr_ck, CK_AM33XX), CLK(NULL, "dpll_ddr_m2_ck", &dpll_ddr_m2_ck, CK_AM33XX), diff --git a/arch/arm/mach-omap2/cclock3xxx_data.c b/arch/arm/mach-omap2/cclock3xxx_data.c index 4579c3c..5a5b471 100644 --- a/arch/arm/mach-omap2/cclock3xxx_data.c +++ b/arch/arm/mach-omap2/cclock3xxx_data.c @@ -3501,7 +3501,8 @@ static struct omap_clk omap3xxx_clks[] = { CLK(NULL, "uart4_ick", &uart4_ick_am35xx, CK_AM35XX), CLK(NULL, "timer_32k_ck", &omap_32k_fck, CK_3XXX), CLK(NULL, "timer_sys_ck", &sys_ck, CK_3XXX), - CLK(NULL, "cpufreq_ck", &dpll1_ck, CK_3XXX), + CLK(NULL, "cpufreq_ck", &dpll1_ck, CK_3XXX), /* used in non-device tree boot */ + CLK("cpufreq-cpu0.0", NULL, &dpll1_ck, CK_3XXX), /* used in device tree boot */ }; static const char *enable_init_clks[] = { diff --git a/arch/arm/mach-omap2/cclock44xx_data.c b/arch/arm/mach-omap2/cclock44xx_data.c index 3d58f33..bcea785 100644 --- a/arch/arm/mach-omap2/cclock44xx_data.c +++ b/arch/arm/mach-omap2/cclock44xx_data.c @@ -1660,7 +1660,8 @@ static struct omap_clk omap44xx_clks[] = { CLK("4013a000.timer", "timer_sys_ck", &syc_clk_div_ck, CK_443X), CLK("4013c000.timer", "timer_sys_ck", &syc_clk_div_ck, CK_443X), CLK("4013e000.timer", "timer_sys_ck", &syc_clk_div_ck, CK_443X), - CLK(NULL, "cpufreq_ck", &dpll_mpu_ck, CK_443X), + CLK(NULL, "cpufreq_ck", &dpll_mpu_ck, CK_443X), /* used in non-device tree boot */ + CLK("cpufreq-cpu0.0", NULL, &dpll_mpu_ck, CK_443X), /* used in device tree boot */ }; int __init omap4xxx_clk_init(void) -- 1.7.9.5
next prev parent reply other threads:[~2013-03-28 21:52 UTC|newest] Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-03-28 21:52 [PATCH V3 0/2] ARM: OMAP3+: support cpufreq-cpu0 for device tree boot Nishanth Menon 2013-03-28 21:52 ` Nishanth Menon 2013-03-28 21:52 ` Nishanth Menon [this message] 2013-03-28 21:52 ` [PATCH V3 1/2] ARM: OMAP3+: use cpu0-cpufreq driver in device tree supported boot Nishanth Menon 2013-04-03 18:47 ` Kevin Hilman 2013-04-03 18:47 ` Kevin Hilman 2013-04-04 2:52 ` Nishanth Menon 2013-04-04 5:13 ` Rajendra Nayak 2013-04-04 19:00 ` Nishanth Menon 2013-04-05 9:50 ` Rajendra Nayak 2013-04-05 11:26 ` Nishanth Menon 2013-04-05 16:13 ` Tony Lindgren 2013-04-05 16:32 ` Nishanth Menon 2013-04-05 17:05 ` Tony Lindgren 2013-04-05 17:17 ` Nishanth Menon 2013-04-05 19:28 ` Tony Lindgren 2013-04-05 20:02 ` Nishanth Menon 2013-04-05 21:10 ` Tony Lindgren 2013-04-05 21:32 ` Nishanth Menon 2013-04-05 21:40 ` Tony Lindgren 2013-04-05 22:10 ` Nishanth Menon 2013-04-05 22:17 ` Tony Lindgren 2013-04-05 22:23 ` Nishanth Menon 2013-03-28 21:52 ` [PATCH V3 2/2] cpufreq: OMAP: instantiate omap-cpufreq as a platform_driver Nishanth Menon 2013-03-28 21:52 ` Nishanth Menon 2013-03-29 2:59 ` Viresh Kumar 2013-04-05 17:07 ` Nishanth Menon 2013-04-05 21:34 ` Kevin Hilman 2013-04-05 21:34 ` Kevin Hilman 2013-04-05 21:36 ` Nishanth Menon 2013-04-03 17:47 ` [PATCH V3 0/2] ARM: OMAP3+: support cpufreq-cpu0 for device tree boot Kevin Hilman 2013-04-03 18:22 ` Nishanth Menon
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