From: Akash Asthana <akashast@codeaurora.org>
To: gregkh@linuxfoundation.org, agross@kernel.org,
bjorn.andersson@linaro.org, wsa@the-dreams.de,
broonie@kernel.org, mark.rutland@arm.com, robh+dt@kernel.org
Cc: linux-i2c@vger.kernel.org, linux-spi@vger.kernel.org,
devicetree@vger.kernel.org, swboyd@chromium.org,
mgautam@codeaurora.org, linux-arm-msm@vger.kernel.org,
linux-serial@vger.kernel.org, mka@chromium.org,
dianders@chromium.org, evgreen@chromium.org,
georgi.djakov@linaro.org, Akash Asthana <akashast@codeaurora.org>
Subject: [PATCH V5 0/7] Add interconnect support to QSPI and QUP drivers
Date: Fri, 8 May 2020 12:03:32 +0530 [thread overview]
Message-ID: <1588919619-21355-1-git-send-email-akashast@codeaurora.org> (raw)
V5 depend on below patches.
- https://lore.kernel.org/patchwork/patch/1237642/ [Add helpers
for enabling/disabling a path]
- https://patchwork.kernel.org/patch/11491027/ [Add devm_of_icc_get()
as exported API for users ]
dt-binding patch for QUP drivers.
- https://patchwork.kernel.org/patch/11534149/ [Convert QUP bindings
to YAML and add ICC, pin swap doc]
High level design:
- QUP wrapper/common driver.
Vote for QUP core on behalf of earlycon from probe.
Remove BW vote during earlycon exit call
- SERIAL driver.
Vote only for CPU/CORE path because driver is in FIFO mode only
Vote/unvote from qcom_geni_serial_pm func.
Bump up the CPU vote from set_termios call based on real time need
- I2C driver.
Vote for CORE/CPU/DDR path
Vote/unvote from runtime resume/suspend callback
As bus speed for I2C is fixed from probe itself no need for bump up.
- SPI QUP driver.
Vote only for CPU/CORE path because driver is in FIFO mode only
Vote/unvote from runtime resume/suspend callback
Bump up CPU vote based on real time need per transfer.
- QSPI driver.
Vote only for CPU path
Vote/unvote from runtime resume/suspend callback
Bump up CPU vote based on real time need per transfer.
Changes in V2:
- Add devm_of_icc_get() API interconnect core.
- Add ICC support to common driver to fix earlyconsole crash.
Changes in V3:
- Define common ICC APIs in geni-se driver and use it across geni based
I2C,SPI and UART driver.
Changes in V4:
- Add a patch to ICC core to scale peak requirement
as twice of average if it is not mentioned explicilty.
Changes in V5:
- As per Georgi's suggestion removed patch from ICC core for assuming
peak_bw as twice of average when it's not mentioned, instead assume it
equall to avg_bw and keep this assumption in ICC client itself.
- As per Matthias suggestion use enum for GENI QUP ICC paths.
Akash Asthana (7):
soc: qcom: geni: Support for ICC voting
soc: qcom-geni-se: Add interconnect support to fix earlycon crash
i2c: i2c-qcom-geni: Add interconnect support
spi: spi-geni-qcom: Add interconnect support
tty: serial: qcom_geni_serial: Add interconnect support
spi: spi-qcom-qspi: Add interconnect support
arm64: dts: sc7180: Add interconnect for QUP and QSPI
arch/arm64/boot/dts/qcom/sc7180.dtsi | 127 ++++++++++++++++++++++++++++
drivers/i2c/busses/i2c-qcom-geni.c | 29 ++++++-
drivers/soc/qcom/qcom-geni-se.c | 155 ++++++++++++++++++++++++++++++++++
drivers/spi/spi-geni-qcom.c | 32 ++++++-
drivers/spi/spi-qcom-qspi.c | 59 ++++++++++++-
drivers/tty/serial/qcom_geni_serial.c | 38 ++++++++-
include/linux/qcom-geni-se.h | 44 ++++++++++
7 files changed, 478 insertions(+), 6 deletions(-)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,\na Linux Foundation Collaborative Project
next reply other threads:[~2020-05-08 6:34 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-08 6:33 Akash Asthana [this message]
2020-05-08 6:33 ` [PATCH V5 1/7] soc: qcom: geni: Support for ICC voting Akash Asthana
2020-05-08 17:13 ` Matthias Kaehlcke
2020-05-12 14:02 ` Akash Asthana
2020-05-08 19:03 ` Matthias Kaehlcke
2020-05-12 14:26 ` Akash Asthana
2020-05-08 6:33 ` [PATCH V5 2/7] soc: qcom-geni-se: Add interconnect support to fix earlycon crash Akash Asthana
2020-05-08 17:59 ` Matthias Kaehlcke
2020-05-08 19:14 ` Matthias Kaehlcke
2020-05-14 7:03 ` Akash Asthana
2020-05-14 6:45 ` Akash Asthana
2020-05-09 12:11 ` Andy Shevchenko
2020-05-14 7:34 ` Akash Asthana
2020-05-08 6:33 ` [PATCH V5 3/7] i2c: i2c-qcom-geni: Add interconnect support Akash Asthana
2020-05-08 18:16 ` Matthias Kaehlcke
2020-05-15 10:03 ` Wolfram Sang
2020-05-08 6:33 ` [PATCH V5 4/7] spi: spi-geni-qcom: " Akash Asthana
2020-05-08 10:16 ` Mark Brown
2020-05-08 18:25 ` Matthias Kaehlcke
2020-05-14 7:37 ` Akash Asthana
2020-05-08 6:33 ` [PATCH V5 5/7] tty: serial: qcom_geni_serial: " Akash Asthana
2020-05-08 18:38 ` Matthias Kaehlcke
2020-05-08 6:33 ` [PATCH V5 6/7] spi: spi-qcom-qspi: " Akash Asthana
2020-05-08 10:16 ` Mark Brown
2020-05-08 18:53 ` Matthias Kaehlcke
2020-05-18 13:10 ` Akash Asthana
2020-05-08 6:33 ` [PATCH V5 7/7] arm64: dts: sc7180: Add interconnect for QUP and QSPI Akash Asthana
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