From: Chander Kashyap <chander.kashyap@linaro.org> To: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: daniel.lezcano@linaro.org, lorenzo.pieralisi@arm.com, rjw@rjwysocki.net, kgene.kim@samsung.com, Chander Kashyap <chander.kashyap@linaro.org>, Chander Kashyap <k.chander@samsung.com> Subject: [PATCH v5 1/6] driver: cpuidle-big-little: add of_device_id structure Date: Wed, 14 May 2014 13:33:52 +0530 [thread overview] Message-ID: <1400054637-21505-2-git-send-email-chander.kashyap@linaro.org> (raw) In-Reply-To: <1400054637-21505-1-git-send-email-chander.kashyap@linaro.org> This driver will be used by many big.Little Soc's. As of now it does string matching of hardcoded compatible string to init the driver. This comparison list will keep on growing with addition of new SoC's. Hence add of_device_id structure to collect the compatible strings of SoC's using this driver. Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org> Signed-off-by: Chander Kashyap <k.chander@samsung.com> --- drivers/cpuidle/cpuidle-big_little.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c index b45fc62..4cd02bd 100644 --- a/drivers/cpuidle/cpuidle-big_little.c +++ b/drivers/cpuidle/cpuidle-big_little.c @@ -163,14 +163,23 @@ static int __init bl_idle_driver_init(struct cpuidle_driver *drv, int cpu_id) return 0; } +static const struct of_device_id compatible_machine_match[] = { + { .compatible = "arm,vexpress,v2p-ca15_a7" }, + {}, +}; + static int __init bl_idle_init(void) { int ret; + struct device_node *root = of_find_node_by_path("/"); + + if (!root) + return -ENODEV; /* * Initialize the driver just for a compliant set of machines */ - if (!of_machine_is_compatible("arm,vexpress,v2p-ca15_a7")) + if (!of_match_node(compatible_machine_match, root)) return -ENODEV; /* * For now the differentiation between little and big cores -- 1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: chander.kashyap@linaro.org (Chander Kashyap) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 1/6] driver: cpuidle-big-little: add of_device_id structure Date: Wed, 14 May 2014 13:33:52 +0530 [thread overview] Message-ID: <1400054637-21505-2-git-send-email-chander.kashyap@linaro.org> (raw) In-Reply-To: <1400054637-21505-1-git-send-email-chander.kashyap@linaro.org> This driver will be used by many big.Little Soc's. As of now it does string matching of hardcoded compatible string to init the driver. This comparison list will keep on growing with addition of new SoC's. Hence add of_device_id structure to collect the compatible strings of SoC's using this driver. Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org> Signed-off-by: Chander Kashyap <k.chander@samsung.com> --- drivers/cpuidle/cpuidle-big_little.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c index b45fc62..4cd02bd 100644 --- a/drivers/cpuidle/cpuidle-big_little.c +++ b/drivers/cpuidle/cpuidle-big_little.c @@ -163,14 +163,23 @@ static int __init bl_idle_driver_init(struct cpuidle_driver *drv, int cpu_id) return 0; } +static const struct of_device_id compatible_machine_match[] = { + { .compatible = "arm,vexpress,v2p-ca15_a7" }, + {}, +}; + static int __init bl_idle_init(void) { int ret; + struct device_node *root = of_find_node_by_path("/"); + + if (!root) + return -ENODEV; /* * Initialize the driver just for a compliant set of machines */ - if (!of_machine_is_compatible("arm,vexpress,v2p-ca15_a7")) + if (!of_match_node(compatible_machine_match, root)) return -ENODEV; /* * For now the differentiation between little and big cores -- 1.7.9.5
next prev parent reply other threads:[~2014-05-14 8:04 UTC|newest] Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <ANuQgHGSPJ45tbrVppAVpOqF0OfHacPWfX=S5mOVxTPr66f7vg@mail.gmail.com> 2014-05-14 8:03 ` [PATCH v5 0/6] add cpuidle support for Exynos5420 Chander Kashyap 2014-05-14 8:03 ` Chander Kashyap 2014-05-14 8:03 ` Chander Kashyap [this message] 2014-05-14 8:03 ` [PATCH v5 1/6] driver: cpuidle-big-little: add of_device_id structure Chander Kashyap 2014-05-14 8:03 ` [PATCH v5 2/6] arm: exynos: add generic function to calculate cpu number Chander Kashyap 2014-05-14 8:03 ` Chander Kashyap 2014-05-14 8:03 ` [PATCH v5 3/6] cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little driver Chander Kashyap 2014-05-14 8:03 ` Chander Kashyap 2014-05-14 8:03 ` Chander Kashyap 2014-05-14 8:03 ` [PATCH v5 4/6] driver: cpuidle: cpuidle-big-little: init driver for Exynos5420 Chander Kashyap 2014-05-14 8:03 ` Chander Kashyap 2014-05-14 13:04 ` Arnd Bergmann 2014-05-14 13:04 ` Arnd Bergmann 2014-05-14 14:06 ` Lorenzo Pieralisi 2014-05-14 14:06 ` Lorenzo Pieralisi 2014-05-14 14:06 ` Lorenzo Pieralisi 2014-05-14 8:03 ` [PATCH v5 5/6] exynos: cpuidle: do not allow cpuidle registration " Chander Kashyap 2014-05-14 8:03 ` Chander Kashyap 2014-05-15 21:26 ` Tomasz Figa 2014-05-15 21:26 ` Tomasz Figa 2014-05-16 4:01 ` Chander Kashyap 2014-05-16 4:01 ` Chander Kashyap 2014-05-16 4:01 ` Chander Kashyap 2014-05-16 8:03 ` [PATCH v6 0/6] add cpuidle support " Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-16 8:03 ` [PATCH v6 1/6] driver: cpuidle-big-little: add of_device_id structure Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-28 8:58 ` Daniel Lezcano 2014-05-28 8:58 ` Daniel Lezcano 2014-05-16 8:03 ` [PATCH v6 2/6] arm: exynos: add generic function to calculate cpu number Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-16 8:03 ` [PATCH v6 3/6] cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little driver Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-28 9:00 ` Daniel Lezcano 2014-05-28 9:00 ` Daniel Lezcano 2014-05-16 8:03 ` [PATCH v6 4/6] driver: cpuidle: cpuidle-big-little: init driver for Exynos5420 Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-16 8:03 ` [PATCH v6 5/6] exynos: cpuidle: do not allow cpuidle registration " Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-16 8:03 ` [PATCH v6 6/6] mcpm: exynos: populate suspend and powered_up callbacks Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-16 8:03 ` Chander Kashyap 2014-05-19 5:40 ` [PATCH v6 0/6] add cpuidle support for Exynos5420 Chander Kashyap 2014-05-19 5:40 ` Chander Kashyap 2014-05-19 5:40 ` Chander Kashyap 2014-05-26 4:40 ` Chander Kashyap 2014-05-26 4:40 ` Chander Kashyap 2014-05-26 4:40 ` Chander Kashyap 2014-05-26 10:29 ` Tomasz Figa 2014-05-26 10:29 ` Tomasz Figa 2014-05-28 4:28 ` Chander Kashyap 2014-05-28 4:28 ` Chander Kashyap 2014-05-28 4:28 ` Chander Kashyap 2014-05-28 4:35 ` Kukjin Kim 2014-05-28 4:35 ` Kukjin Kim 2014-05-28 9:02 ` Daniel Lezcano 2014-05-28 9:02 ` Daniel Lezcano 2014-05-29 4:37 ` Chander Kashyap 2014-05-29 4:37 ` Chander Kashyap 2014-05-29 4:37 ` Chander Kashyap 2014-06-10 12:38 ` Chander M. Kashyap 2014-06-10 12:38 ` Chander M. Kashyap 2014-06-10 12:38 ` Chander M. Kashyap 2014-05-14 8:03 ` [PATCH v5 6/6] mcpm: exynos: populate suspend and powered_up callbacks Chander Kashyap 2014-05-14 8:03 ` Chander Kashyap 2014-05-14 9:56 ` [PATCH v5 0/6] add cpuidle support for Exynos5420 Daniel Lezcano 2014-05-14 9:56 ` Daniel Lezcano 2014-05-14 10:43 ` Chander Kashyap 2014-05-14 10:43 ` Chander Kashyap 2014-05-14 10:43 ` Chander Kashyap
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