From: Guillaume La Roque <glaroque@baylibre.com> To: linus.walleij@linaro.org, khilman@baylibre.com Cc: jbrunet@baylibre.com, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 0/6] Add drive-strength in Meson pinctrl driver Date: Tue, 14 May 2019 10:26:46 +0200 [thread overview] Message-ID: <20190514082652.20686-1-glaroque@baylibre.com> (raw) The purpose of this patchset is to add drive-strength support in meson pinconf driver. This is a new feature that was added on the g12a. It is critical for us to support this since many functions are failing with default pad drive-strength. The value achievable by the SoC are 0.5mA, 2.5mA, 3mA and 4mA and the DT property 'drive-strength' is expressed in mA. So this patch add another generic property "drive-strength-microamp". The change to do so would be minimal and could be benefit to other platforms later on. Cheers Guillaume Changes since v5: - restore Tested-by/Reviewed-by/Ack-by tags Changes since v4: - fix dt-binding documentation - rename drive-strength-uA to drive-strength-microamp in coverletter Changes since v3: - remove dev_err in meson_get_drive_strength - cleanup code Changes since v2: - rename driver-strength-uA property to drive-strength-microamp - rework patch series for better understanding - rework set_bias function Changes since v1: - fix missing break - implement new pinctrl generic property "drive-strength-uA" [1] https://lkml.kernel.org/r/20190314163725.7918-1-jbrunet@baylibre.com Tested-by: Jerome Brunet <jbrunet@baylibre.com> Guillaume La Roque (6): dt-bindings: pinctrl: add a 'drive-strength-microamp' property pinctrl: generic: add new 'drive-strength-microamp' property support dt-bindings: pinctrl: meson: Add drive-strength-microamp property pinctrl: meson: Rework enable/disable bias part pinctrl: meson: add support of drive-strength-microamp pinctrl: meson: g12a: add DS bank value .../bindings/pinctrl/meson,pinctrl.txt | 4 + .../bindings/pinctrl/pinctrl-bindings.txt | 3 + drivers/pinctrl/meson/pinctrl-meson-g12a.c | 36 ++-- drivers/pinctrl/meson/pinctrl-meson.c | 180 ++++++++++++++---- drivers/pinctrl/meson/pinctrl-meson.h | 18 +- drivers/pinctrl/pinconf-generic.c | 2 + include/linux/pinctrl/pinconf-generic.h | 3 + 7 files changed, 193 insertions(+), 53 deletions(-) -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Guillaume La Roque <glaroque@baylibre.com> To: linus.walleij@linaro.org, khilman@baylibre.com Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, jbrunet@baylibre.com Subject: [PATCH v6 0/6] Add drive-strength in Meson pinctrl driver Date: Tue, 14 May 2019 10:26:46 +0200 [thread overview] Message-ID: <20190514082652.20686-1-glaroque@baylibre.com> (raw) The purpose of this patchset is to add drive-strength support in meson pinconf driver. This is a new feature that was added on the g12a. It is critical for us to support this since many functions are failing with default pad drive-strength. The value achievable by the SoC are 0.5mA, 2.5mA, 3mA and 4mA and the DT property 'drive-strength' is expressed in mA. So this patch add another generic property "drive-strength-microamp". The change to do so would be minimal and could be benefit to other platforms later on. Cheers Guillaume Changes since v5: - restore Tested-by/Reviewed-by/Ack-by tags Changes since v4: - fix dt-binding documentation - rename drive-strength-uA to drive-strength-microamp in coverletter Changes since v3: - remove dev_err in meson_get_drive_strength - cleanup code Changes since v2: - rename driver-strength-uA property to drive-strength-microamp - rework patch series for better understanding - rework set_bias function Changes since v1: - fix missing break - implement new pinctrl generic property "drive-strength-uA" [1] https://lkml.kernel.org/r/20190314163725.7918-1-jbrunet@baylibre.com Tested-by: Jerome Brunet <jbrunet@baylibre.com> Guillaume La Roque (6): dt-bindings: pinctrl: add a 'drive-strength-microamp' property pinctrl: generic: add new 'drive-strength-microamp' property support dt-bindings: pinctrl: meson: Add drive-strength-microamp property pinctrl: meson: Rework enable/disable bias part pinctrl: meson: add support of drive-strength-microamp pinctrl: meson: g12a: add DS bank value .../bindings/pinctrl/meson,pinctrl.txt | 4 + .../bindings/pinctrl/pinctrl-bindings.txt | 3 + drivers/pinctrl/meson/pinctrl-meson-g12a.c | 36 ++-- drivers/pinctrl/meson/pinctrl-meson.c | 180 ++++++++++++++---- drivers/pinctrl/meson/pinctrl-meson.h | 18 +- drivers/pinctrl/pinconf-generic.c | 2 + include/linux/pinctrl/pinconf-generic.h | 3 + 7 files changed, 193 insertions(+), 53 deletions(-) -- 2.17.1 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic
next reply other threads:[~2019-05-14 8:26 UTC|newest] Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-05-14 8:26 Guillaume La Roque [this message] 2019-05-14 8:26 ` [PATCH v6 0/6] Add drive-strength in Meson pinctrl driver Guillaume La Roque 2019-05-14 8:26 ` [PATCH v6 1/6] dt-bindings: pinctrl: add a 'drive-strength-microamp' property Guillaume La Roque 2019-05-14 8:26 ` Guillaume La Roque 2019-05-14 8:26 ` [PATCH v6 2/6] pinctrl: generic: add new 'drive-strength-microamp' property support Guillaume La Roque 2019-05-14 8:26 ` Guillaume La Roque 2019-05-14 8:26 ` [PATCH v6 3/6] dt-bindings: pinctrl: meson: Add drive-strength-microamp property Guillaume La Roque 2019-05-14 8:26 ` Guillaume La Roque 2019-05-14 8:26 ` [PATCH v6 4/6] pinctrl: meson: Rework enable/disable bias part Guillaume La Roque 2019-05-14 8:26 ` Guillaume La Roque 2019-05-14 8:26 ` [PATCH v6 5/6] pinctrl: meson: add support of drive-strength-microamp Guillaume La Roque 2019-05-14 8:26 ` Guillaume La Roque 2019-05-14 8:26 ` [PATCH v6 6/6] pinctrl: meson: g12a: add DS bank value Guillaume La Roque 2019-05-14 8:26 ` Guillaume La Roque 2019-05-16 12:52 ` [PATCH v6 0/6] Add drive-strength in Meson pinctrl driver Linus Walleij 2019-05-16 12:52 ` Linus Walleij 2019-05-16 12:52 ` Linus Walleij
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