From: Konrad Dybcio <konrad.dybcio@linaro.org>
To: Andy Gross <agross@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Philipp Zabel <p.zabel@pengutronix.de>
Cc: Marijn Suijten <marijn.suijten@somainline.org>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Konrad Dybcio <konrad.dybcio@linaro.org>
Subject: [PATCH 2/4] clk: qcom: rcg2: Make hw_clk_ctrl toggleable
Date: Wed, 17 May 2023 18:40:39 +0200 [thread overview]
Message-ID: <20230517-topic-waipio-gpucc-v1-2-4f40e282af1d@linaro.org> (raw)
In-Reply-To: <20230517-topic-waipio-gpucc-v1-0-4f40e282af1d@linaro.org>
Certain SoCs use the HW_CLK_CTRL feature on some of the clocks they
host. This allows the clocks to be turned on automatically when a
downstream branch tries to change rate or config.
Make it togglable so that we can utilize this.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
drivers/clk/qcom/clk-rcg.h | 2 ++
drivers/clk/qcom/clk-rcg2.c | 2 ++
2 files changed, 4 insertions(+)
diff --git a/drivers/clk/qcom/clk-rcg.h b/drivers/clk/qcom/clk-rcg.h
index 01581f4d2c39..e6d84c8c7989 100644
--- a/drivers/clk/qcom/clk-rcg.h
+++ b/drivers/clk/qcom/clk-rcg.h
@@ -141,6 +141,7 @@ extern const struct clk_ops clk_dyn_rcg_ops;
* @clkr: regmap clock handle
* @cfg_off: defines the cfg register offset from the CMD_RCGR + CFG_REG
* @parked_cfg: cached value of the CFG register for parked RCGs
+ * @hw_clk_ctrl: whether to enable hardware clock control
*/
struct clk_rcg2 {
u32 cmd_rcgr;
@@ -152,6 +153,7 @@ struct clk_rcg2 {
struct clk_regmap clkr;
u8 cfg_off;
u32 parked_cfg;
+ bool hw_clk_ctrl;
};
#define to_clk_rcg2(_hw) container_of(to_clk_regmap(_hw), struct clk_rcg2, clkr)
diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c
index 76551534f10d..e22baf3a7112 100644
--- a/drivers/clk/qcom/clk-rcg2.c
+++ b/drivers/clk/qcom/clk-rcg2.c
@@ -325,6 +325,8 @@ static int __clk_rcg2_configure(struct clk_rcg2 *rcg, const struct freq_tbl *f,
cfg |= rcg->parent_map[index].cfg << CFG_SRC_SEL_SHIFT;
if (rcg->mnd_width && f->n && (f->m != f->n))
cfg |= CFG_MODE_DUAL_EDGE;
+ if (rcg->hw_clk_ctrl)
+ cfg |= CFG_HW_CLK_CTRL_MASK;
*_cfg &= ~mask;
*_cfg |= cfg;
--
2.40.1
next prev parent reply other threads:[~2023-05-17 16:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-17 16:40 [PATCH 0/4] SM8450 GPUCC Konrad Dybcio
2023-05-17 16:40 ` [PATCH 1/4] dt-bindings: clock: Add Qcom " Konrad Dybcio
2023-05-17 17:58 ` Krzysztof Kozlowski
2023-05-17 16:40 ` Konrad Dybcio [this message]
2023-05-17 16:40 ` [PATCH 3/4] clk: qcom: gcc-sm8450: Enable hw_clk_ctrl Konrad Dybcio
2023-05-17 16:40 ` [PATCH 4/4] clk: qcom: Add support for SM8450 GPUCC Konrad Dybcio
2023-05-27 4:00 ` (subset) [PATCH 0/4] " Bjorn Andersson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230517-topic-waipio-gpucc-v1-2-4f40e282af1d@linaro.org \
--to=konrad.dybcio@linaro.org \
--cc=agross@kernel.org \
--cc=andersson@kernel.org \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=dmitry.baryshkov@linaro.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-clk@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marijn.suijten@somainline.org \
--cc=mturquette@baylibre.com \
--cc=p.zabel@pengutronix.de \
--cc=robh+dt@kernel.org \
--cc=sboyd@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.