From: Sudeep Holla <sudeep.holla@arm.com> To: linux-arm-kernel@lists.infradead.org Cc: Sudeep Holla <sudeep.holla@arm.com>, Peng Fan <peng.fan@nxp.com>, linux-kernel@vger.kernel.org, Bo Zhang <bozhang.zhang@broadcom.com>, Jim Quinlan <james.quinlan@broadcom.com>, Volodymyr Babchuk <volodymyr_babchuk@epam.com>, Gaku Inami <gaku.inami.xh@renesas.com>, Etienne Carriere <etienne.carriere@linaro.org>, Stephen Boyd <sboyd@kernel.org>, linux-clk@vger.kernel.org Subject: [PATCH v2 09/10] firmware: arm_scmi: Drop config flag in clk_ops->rate_set Date: Fri, 26 Jul 2019 14:51:37 +0100 [thread overview] Message-ID: <20190726135138.9858-10-sudeep.holla@arm.com> (raw) In-Reply-To: <20190726135138.9858-1-sudeep.holla@arm.com> CLOCK_PROTOCOL_ATTRIBUTES provides attributes to indicate the maximum number of pending asynchronous clock rate changes supported by the platform. If it's non-zero, then we should be able to use asynchronous clock rate set for any clocks until the maximum limit is reached. In order to add that support, let's drop the config flag passed to clk_ops->rate_set and handle the asynchronous requests dynamically. Cc: Stephen Boyd <sboyd@kernel.org> Cc: linux-clk@vger.kernel.org Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> --- drivers/clk/clk-scmi.c | 2 +- drivers/firmware/arm_scmi/clock.c | 4 ++-- include/linux/scmi_protocol.h | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/clk/clk-scmi.c b/drivers/clk/clk-scmi.c index a2287c770d5c..886f7c5df51a 100644 --- a/drivers/clk/clk-scmi.c +++ b/drivers/clk/clk-scmi.c @@ -69,7 +69,7 @@ static int scmi_clk_set_rate(struct clk_hw *hw, unsigned long rate, { struct scmi_clk *clk = to_scmi_clk(hw); - return clk->handle->clk_ops->rate_set(clk->handle, clk->id, 0, rate); + return clk->handle->clk_ops->rate_set(clk->handle, clk->id, rate); } static int scmi_clk_enable(struct clk_hw *hw) diff --git a/drivers/firmware/arm_scmi/clock.c b/drivers/firmware/arm_scmi/clock.c index 0a194af92438..dd215bd11a58 100644 --- a/drivers/firmware/arm_scmi/clock.c +++ b/drivers/firmware/arm_scmi/clock.c @@ -218,7 +218,7 @@ scmi_clock_rate_get(const struct scmi_handle *handle, u32 clk_id, u64 *value) } static int scmi_clock_rate_set(const struct scmi_handle *handle, u32 clk_id, - u32 config, u64 rate) + u64 rate) { int ret; struct scmi_xfer *t; @@ -230,7 +230,7 @@ static int scmi_clock_rate_set(const struct scmi_handle *handle, u32 clk_id, return ret; cfg = t->tx.buf; - cfg->flags = cpu_to_le32(config); + cfg->flags = cpu_to_le32(0); cfg->id = cpu_to_le32(clk_id); cfg->value_low = cpu_to_le32(rate & 0xffffffff); cfg->value_high = cpu_to_le32(rate >> 32); diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index ae7381413f1f..f0f2b53a1dac 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -71,7 +71,7 @@ struct scmi_clk_ops { int (*rate_get)(const struct scmi_handle *handle, u32 clk_id, u64 *rate); int (*rate_set)(const struct scmi_handle *handle, u32 clk_id, - u32 config, u64 rate); + u64 rate); int (*enable)(const struct scmi_handle *handle, u32 clk_id); int (*disable)(const struct scmi_handle *handle, u32 clk_id); }; -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Sudeep Holla <sudeep.holla@arm.com> To: linux-arm-kernel@lists.infradead.org Cc: Peng Fan <peng.fan@nxp.com>, Etienne Carriere <etienne.carriere@linaro.org>, Stephen Boyd <sboyd@kernel.org>, linux-kernel@vger.kernel.org, Bo Zhang <bozhang.zhang@broadcom.com>, Jim Quinlan <james.quinlan@broadcom.com>, Sudeep Holla <sudeep.holla@arm.com>, Gaku Inami <gaku.inami.xh@renesas.com>, Volodymyr Babchuk <volodymyr_babchuk@epam.com>, linux-clk@vger.kernel.org Subject: [PATCH v2 09/10] firmware: arm_scmi: Drop config flag in clk_ops->rate_set Date: Fri, 26 Jul 2019 14:51:37 +0100 [thread overview] Message-ID: <20190726135138.9858-10-sudeep.holla@arm.com> (raw) In-Reply-To: <20190726135138.9858-1-sudeep.holla@arm.com> CLOCK_PROTOCOL_ATTRIBUTES provides attributes to indicate the maximum number of pending asynchronous clock rate changes supported by the platform. If it's non-zero, then we should be able to use asynchronous clock rate set for any clocks until the maximum limit is reached. In order to add that support, let's drop the config flag passed to clk_ops->rate_set and handle the asynchronous requests dynamically. Cc: Stephen Boyd <sboyd@kernel.org> Cc: linux-clk@vger.kernel.org Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> --- drivers/clk/clk-scmi.c | 2 +- drivers/firmware/arm_scmi/clock.c | 4 ++-- include/linux/scmi_protocol.h | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/clk/clk-scmi.c b/drivers/clk/clk-scmi.c index a2287c770d5c..886f7c5df51a 100644 --- a/drivers/clk/clk-scmi.c +++ b/drivers/clk/clk-scmi.c @@ -69,7 +69,7 @@ static int scmi_clk_set_rate(struct clk_hw *hw, unsigned long rate, { struct scmi_clk *clk = to_scmi_clk(hw); - return clk->handle->clk_ops->rate_set(clk->handle, clk->id, 0, rate); + return clk->handle->clk_ops->rate_set(clk->handle, clk->id, rate); } static int scmi_clk_enable(struct clk_hw *hw) diff --git a/drivers/firmware/arm_scmi/clock.c b/drivers/firmware/arm_scmi/clock.c index 0a194af92438..dd215bd11a58 100644 --- a/drivers/firmware/arm_scmi/clock.c +++ b/drivers/firmware/arm_scmi/clock.c @@ -218,7 +218,7 @@ scmi_clock_rate_get(const struct scmi_handle *handle, u32 clk_id, u64 *value) } static int scmi_clock_rate_set(const struct scmi_handle *handle, u32 clk_id, - u32 config, u64 rate) + u64 rate) { int ret; struct scmi_xfer *t; @@ -230,7 +230,7 @@ static int scmi_clock_rate_set(const struct scmi_handle *handle, u32 clk_id, return ret; cfg = t->tx.buf; - cfg->flags = cpu_to_le32(config); + cfg->flags = cpu_to_le32(0); cfg->id = cpu_to_le32(clk_id); cfg->value_low = cpu_to_le32(rate & 0xffffffff); cfg->value_high = cpu_to_le32(rate >> 32); diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index ae7381413f1f..f0f2b53a1dac 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -71,7 +71,7 @@ struct scmi_clk_ops { int (*rate_get)(const struct scmi_handle *handle, u32 clk_id, u64 *rate); int (*rate_set)(const struct scmi_handle *handle, u32 clk_id, - u32 config, u64 rate); + u64 rate); int (*enable)(const struct scmi_handle *handle, u32 clk_id); int (*disable)(const struct scmi_handle *handle, u32 clk_id); }; -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-07-26 13:52 UTC|newest] Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-07-26 13:51 [PATCH v2 00/10] firmware: arm_scmi: Add support for Rx channels, async commands and delayed response Sudeep Holla 2019-07-26 13:51 ` Sudeep Holla 2019-07-26 13:51 ` [PATCH v2 01/10] firmware: arm_scmi: Reorder some functions to avoid forward declarations Sudeep Holla 2019-07-26 13:51 ` Sudeep Holla 2019-07-26 13:51 ` [PATCH v2 02/10] firmware: arm_scmi: Segregate tx channel handling and prepare to add rx Sudeep Holla 2019-07-26 13:51 ` Sudeep Holla 2019-07-26 13:51 ` [PATCH v2 03/10] firmware: arm_scmi: Add receive channel support for notifications Sudeep Holla 2019-07-26 13:51 ` Sudeep Holla 2019-07-26 13:51 ` [PATCH v2 04/10] firmware: arm_scmi: Separate out tx buffer handling and prepare to add rx Sudeep Holla 2019-07-26 13:51 ` Sudeep Holla 2019-07-26 13:51 ` [PATCH v2 05/10] firmware: arm_scmi: Add mechanism to unpack message headers Sudeep Holla 2019-07-26 13:51 ` Sudeep Holla 2019-07-26 13:51 ` [PATCH v2 06/10] firmware: arm_scmi: Add support for asynchronous commands and delayed response Sudeep Holla 2019-07-26 13:51 ` Sudeep Holla 2019-07-26 13:51 ` [PATCH v2 07/10] firmware: arm_scmi: Drop async flag in sensor_ops->reading_get Sudeep Holla 2019-07-26 13:51 ` Sudeep Holla 2019-07-26 13:51 ` [PATCH v2 08/10] firmware: arm_scmi: Add asynchronous sensor read if it supports Sudeep Holla 2019-07-26 13:51 ` Sudeep Holla 2019-07-26 13:51 ` Sudeep Holla [this message] 2019-07-26 13:51 ` [PATCH v2 09/10] firmware: arm_scmi: Drop config flag in clk_ops->rate_set Sudeep Holla 2019-07-26 13:51 ` [PATCH v2 10/10] firmware: arm_scmi: Use asynchronous CLOCK_RATE_SET when possible Sudeep Holla 2019-07-26 13:51 ` Sudeep Holla 2019-07-26 16:22 ` Stephen Boyd 2019-07-26 16:22 ` Stephen Boyd
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