From: Timur Tabi <timur@codeaurora.org> To: linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, Linus Walleij <linus.walleij@linaro.org>, Andy Shevchenko <andriy.shevchenko@linux.intel.com>, Mika Westerberg <mika.westerberg@linux.intel.com>, thierry.reding@gmail.com, Stephen Boyd <sboyd@codeaurora.org>, david.brown@linaro.org, andy.gross@linaro.org, Bjorn Andersson <bjorn.andersson@linaro.org>, Varadarajan Narayanan <varada@codeaurora.org>, Archit Taneja <architt@codeaurora.org> Cc: timur@codeaurora.org Subject: [PATCH 0/3] [v10] pinctrl: qcom: add support for sparse GPIOs Date: Wed, 13 Dec 2017 12:30:15 -0600 [thread overview] Message-ID: <1513189818-7384-1-git-send-email-timur@codeaurora.org> (raw) A series of patches that add support for GPIO maps that have holes in them. That is, even though a client driver has N consecutive GPIOs, some are just unavailable for whatever reason, and the hardware should not be accessed for those GPIOs. Patch 1 reverts an old patch that triggers a get_direction of every pin upon init, without attempting to request the pins first. The direction is already being queried when the pin is requested. Patch 2 adds support to pinctrl-msm for "unavailable" GPIOs. Patch 3 extends that support to pinctrl-qdf2xxx. A recent ACPI change on QDF2400 platforms blocks access to most pins, so the driver can only register a subset. This version drops the availability check in gpiolib, because it's no necessary. Instead, just having pinctrl-msm return -EACCES is enough to block all unavailable GPIOs. Patch 1 removes the only instance where an unrequested GPIO is being accessed. v10: Use driver_stuct to obtain ACPI match table entry Timur Tabi (3): [v2] Revert "gpio: set up initial state from .get_direction()" [v8] pinctrl: qcom: disable GPIO groups with no pins [v6] pinctrl: qcom: qdf2xxx: add support for new ACPI HID QCOM8002 drivers/gpio/gpiolib.c | 31 ++------ drivers/pinctrl/qcom/pinctrl-msm.c | 28 +++++-- drivers/pinctrl/qcom/pinctrl-qdf2xxx.c | 134 +++++++++++++++++++++++++-------- 3 files changed, 133 insertions(+), 60 deletions(-) -- Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
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From: timur@codeaurora.org (Timur Tabi) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 0/3] [v10] pinctrl: qcom: add support for sparse GPIOs Date: Wed, 13 Dec 2017 12:30:15 -0600 [thread overview] Message-ID: <1513189818-7384-1-git-send-email-timur@codeaurora.org> (raw) A series of patches that add support for GPIO maps that have holes in them. That is, even though a client driver has N consecutive GPIOs, some are just unavailable for whatever reason, and the hardware should not be accessed for those GPIOs. Patch 1 reverts an old patch that triggers a get_direction of every pin upon init, without attempting to request the pins first. The direction is already being queried when the pin is requested. Patch 2 adds support to pinctrl-msm for "unavailable" GPIOs. Patch 3 extends that support to pinctrl-qdf2xxx. A recent ACPI change on QDF2400 platforms blocks access to most pins, so the driver can only register a subset. This version drops the availability check in gpiolib, because it's no necessary. Instead, just having pinctrl-msm return -EACCES is enough to block all unavailable GPIOs. Patch 1 removes the only instance where an unrequested GPIO is being accessed. v10: Use driver_stuct to obtain ACPI match table entry Timur Tabi (3): [v2] Revert "gpio: set up initial state from .get_direction()" [v8] pinctrl: qcom: disable GPIO groups with no pins [v6] pinctrl: qcom: qdf2xxx: add support for new ACPI HID QCOM8002 drivers/gpio/gpiolib.c | 31 ++------ drivers/pinctrl/qcom/pinctrl-msm.c | 28 +++++-- drivers/pinctrl/qcom/pinctrl-qdf2xxx.c | 134 +++++++++++++++++++++++++-------- 3 files changed, 133 insertions(+), 60 deletions(-) -- Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
next reply other threads:[~2017-12-13 18:30 UTC|newest] Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-12-13 18:30 Timur Tabi [this message] 2017-12-13 18:30 ` [PATCH 0/3] [v10] pinctrl: qcom: add support for sparse GPIOs Timur Tabi 2017-12-13 18:30 ` [PATCH 1/3] [v2] Revert "gpio: set up initial state from .get_direction()" Timur Tabi 2017-12-13 18:30 ` Timur Tabi 2017-12-13 22:37 ` Stephen Boyd 2017-12-13 22:37 ` Stephen Boyd 2017-12-13 18:30 ` [PATCH 2/3] [v8] pinctrl: qcom: disable GPIO groups with no pins Timur Tabi 2017-12-13 18:30 ` Timur Tabi 2017-12-13 22:37 ` Stephen Boyd 2017-12-13 22:37 ` Stephen Boyd 2017-12-13 18:30 ` [PATCH 3/3] [v6] pinctrl: qcom: qdf2xxx: add support for new ACPI HID QCOM8002 Timur Tabi 2017-12-13 18:30 ` Timur Tabi 2017-12-13 23:01 ` Stephen Boyd 2017-12-13 23:01 ` Stephen Boyd 2017-12-13 23:09 ` Timur Tabi 2017-12-13 23:09 ` Timur Tabi 2017-12-19 1:18 ` Timur Tabi 2017-12-19 1:18 ` Timur Tabi 2017-12-19 2:39 ` Stephen Boyd 2017-12-19 2:39 ` Stephen Boyd 2017-12-19 4:47 ` Timur Tabi 2017-12-19 4:47 ` Timur Tabi 2017-12-19 19:10 ` Stephen Boyd 2017-12-19 19:10 ` Stephen Boyd 2017-12-19 19:27 ` Timur Tabi 2017-12-19 19:27 ` Timur Tabi 2017-12-19 20:30 ` Stephen Boyd 2017-12-19 20:30 ` Stephen Boyd 2017-12-19 20:32 ` Timur Tabi 2017-12-19 20:32 ` Timur Tabi 2017-12-19 22:56 ` Timur Tabi 2017-12-19 22:56 ` Timur Tabi 2017-12-20 2:26 ` Stephen Boyd 2017-12-20 2:26 ` Stephen Boyd 2017-12-20 4:05 ` Timur Tabi 2017-12-20 4:05 ` Timur Tabi 2017-12-20 8:15 ` Stephen Boyd 2017-12-20 8:15 ` Stephen Boyd 2017-12-20 17:46 ` Timur Tabi 2017-12-20 17:46 ` Timur Tabi 2017-12-21 0:39 ` Stephen Boyd 2017-12-21 0:39 ` Stephen Boyd 2017-12-21 1:06 ` Timur Tabi 2017-12-21 1:06 ` Timur Tabi 2017-12-22 1:46 ` Stephen Boyd 2017-12-22 1:46 ` Stephen Boyd 2018-01-04 15:46 ` Timur Tabi 2018-01-04 15:46 ` Timur Tabi 2018-01-04 16:04 ` Andy Shevchenko 2018-01-04 16:04 ` Andy Shevchenko 2018-01-09 13:46 ` Linus Walleij 2018-01-09 13:46 ` Linus Walleij
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