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Thu, 25 Jan 2024 13:10:47 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1rSyZD-007n0k-2K; Thu, 25 Jan 2024 13:10:47 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: linux-pwm@vger.kernel.org, Hector Martin , Sven Peter , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , Florian Fainelli , Ray Jui , Scott Branden , Alexander Shiyan , Benson Leung , Shawn Guo , Sascha Hauer , Paul Cercueil , Vladimir Zapolskiy , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Matthias Brugger , AngeloGioacchino Del Regno , Neil Armstrong , Kevin Hilman , Conor Dooley , Daire McNamara , =?utf-8?q?Jonathan_Neusch?= =?utf-8?q?=C3=A4fer?= , Heiko Stuebner , Krzysztof Kozlowski , Palmer Dabbelt , Paul Walmsley , Michael Walle , Orson Zhai , Baolin Wang , Chunyan Zhang , Fabrice Gasnier , Maxime Coquelin , Alexandre Torgue , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Hammer Hsieh , Thierry Reding , Jonathan Hunter , Nobuhiro Iwamatsu , Sean Anderson , Michal Simek , Linus Walleij , Bartosz Golaszewski , Andrzej Hajda , Robert Foss , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Pavel Machek , Lee Jones , Anjelique Melendez , Andi Shyti , Lu Hongfei , Bjorn Andersson , Luca Weiss , Johan Hovold , Alex Elder , Greg Kroah-Hartman Cc: kernel@pengutronix.de, Alyssa Rosenzweig , asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Broadcom internal kernel review list , linux-rpi-kernel@lists.infradead.org, Guenter Roeck , chrome-platform@lists.linux.dev, Fabio Estevam , NXP Linux Team , linux-mips@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-mediatek@lists.infradead.org, Jerome Brunet , Martin Blumenstingl , linux-amlogic@lists.infradead.org, linux-riscv@lists.infradead.org, linux-rockchip@lists.infradead.org, Alim Akhtar , linux-samsung-soc@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, linux-gpio@vger.kernel.org, Douglas Anderson , Laurent Pinchart , Jonas Karlman , dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, greybus-dev@lists.linaro.org, linux-staging@lists.linux.dev Subject: [PATCH v5 039/111] pwm: Provide wrappers for storing and getting driver private data Date: Thu, 25 Jan 2024 13:09:01 +0100 Message-ID: <1c873808bfc93ab51f49be799334dee6e8ab398a.1706182805.git.u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-leds@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1920; i=u.kleine-koenig@pengutronix.de; h=from:subject:message-id; bh=xFZHrY/7C9PRNt99L0vl8g6j3yX1l4H0eIirFXKiC6s=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlsk9naZ43cfZqRmm0PAwRVRHazfdHqUBSCmiRl 7SkEynbJGKJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZbJPZwAKCRCPgPtYfRL+ TqyWB/0Xq9H2qxz5a4NBliO3W2OBOYrNCAIPS+YFIK+/psR+8hFCNvRcL8LkTcvrGhz+wH1p+Pb F64/cTSgbYddbvZjoDx1kSNtuKvpvYsZy3B/swnxRBzzhjM4qRl0nLRqI7tuxKsMoJ6KChrenmP ZHuoEbNaT3Jq0uJ3jCQX+OWAPfMUgSkbUr5A7m+b7JrBvE1+EcTZ0ltF9cqru7Gex1/GIk5STLR s4XqyNlr+QqQS2lKFYFTNPQKFohdM4YpL+GcQjYEZZG2zihg6J+r6Mx1mefplrODntBtd+WIXCL uGNCMjCbN1xcJ1N2Xx2QisJNxxGcBaZCqQD7Iqx5HLe1eACQ X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-leds@vger.kernel.org These functions are useful to store and query driver private data a After struct pwm_chip got its own struct device, this can make use of dev_get_drvdata() and dev_set_drvdata() on that device. These functions are required already now to convert drivers to pwmchip_alloc() which must happen before changing pwm_chip::dev. Signed-off-by: Uwe Kleine-König --- include/linux/pwm.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/include/linux/pwm.h b/include/linux/pwm.h index d7966918f301..2c49d2fe2fe7 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -272,6 +272,7 @@ struct pwm_ops { * @npwm: number of PWMs controlled by this chip * @of_xlate: request a PWM device given a device tree PWM specifier * @atomic: can the driver's ->apply() be called in atomic context + * @driver_data: Private pointer for driver specific info * @pwms: array of PWM devices allocated by the framework */ struct pwm_chip { @@ -286,6 +287,7 @@ struct pwm_chip { bool atomic; /* only used internally by the PWM framework */ + void *driver_data; struct pwm_device *pwms; }; @@ -294,6 +296,24 @@ static inline struct device *pwmchip_parent(struct pwm_chip *chip) return chip->dev; } +static inline void *pwmchip_get_drvdata(struct pwm_chip *chip) +{ + /* + * After pwm_chip got a dedicated struct device, this can be replaced by + * dev_get_drvdata(&chip->dev); + */ + return chip->driver_data; +} + +static inline void pwmchip_set_drvdata(struct pwm_chip *chip, void *data) +{ + /* + * After pwm_chip got a dedicated struct device, this can be replaced by + * dev_set_drvdata(&chip->dev, data); + */ + chip->driver_data = data; +} + #if IS_ENABLED(CONFIG_PWM) /* PWM user APIs */ int pwm_apply_might_sleep(struct pwm_device *pwm, const struct pwm_state *state);