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Date: Mon, 24 Sep 2018 11:53:06 -0700
From: Bjorn Andersson <bjorn.andersson@...aro.org>
To: Craig Tatlor <ctatlor97@...il.com>
Cc: linux-arm-msm@...r.kernel.org,
Linus Walleij <linus.walleij@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] pinctrl: qcom: Add sdm660 pinctrl driver
On Sun 12 Aug 07:24 PDT 2018, Craig Tatlor wrote:
> Add initial pinctrl driver to support pin configuration with
> pinctrl framework for sdm660.
> Based off CAF implementation.
>
> Signed-off-by: Craig Tatlor <ctatlor97@...il.com>
> ---
>
> Changes from v1:
> Adds gpio-ranges property to bindings
>
>
> .../bindings/pinctrl/qcom,sdm660-pinctrl.txt | 202 +++
As the DT binding part of the patch is significant, please split it into
its own patch.
> drivers/pinctrl/qcom/Kconfig | 10 +
> drivers/pinctrl/qcom/Makefile | 1 +
> drivers/pinctrl/qcom/pinctrl-sdm660.c | 1451 +++++++++++++++++
> 4 files changed, 1663 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,sdm660-pinctrl.txt
> create mode 100644 drivers/pinctrl/qcom/pinctrl-sdm660.c
>
> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sdm660-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,sdm660-pinctrl.txt
[..]
> +- function:
> + Usage: required
> + Value type: <string>
> + Definition: Specify the alternative function to be configured for the
> + specified pins. Functions are only valid for gpio pins.
> + Valid values are:
> +
> + blsp_uart1, blsp_spi1, blsp_i2c1, blsp_uim1, atest_tsens,
> + bimc_dte1, dac_calib0, blsp_spi8, blsp_uart8, blsp_uim8,
> + qdss_cti_trig_out_b, bimc_dte0, dac_calib1, qdss_cti_trig_in_b,
> + dac_calib2, atest_tsens2, atest_usb1, blsp_spi10, blsp_uart10,
> + blsp_uim10, atest_bbrx1, atest_usb13, atest_bbrx0, atest_usb12,
> + mdp_vsync, edp_lcd, blsp_i2c10, atest_gpsadc1, atest_usb11,
> + atest_gpsadc0, edp_hot, atest_usb10, m_voc, dac_gpio, atest_char,
> + cam_mclk, pll_bypassnl, qdss_stm7, blsp_i2c8, qdss_tracedata_b,
> + pll_reset, qdss_stm6, qdss_stm5, qdss_stm4, atest_usb2, cci_i2c,
> + qdss_stm3, dac_calib3, atest_usb23, atest_char3, dac_calib4,
> + qdss_stm2, atest_usb22, atest_char2, qdss_stm1, dac_calib5,
> + atest_usb21, atest_char1, dbg_out, qdss_stm0, dac_calib6,
> + atest_usb20, atest_char0, dac_calib10, qdss_stm10,
> + qdss_cti_trig_in_a, cci_timer4, blsp_spi6, blsp_uart6, blsp_uim6,
> + blsp2_spi, qdss_stm9, qdss_cti_trig_out_a, dac_calib11,
> + qdss_stm8, cci_timer0, qdss_stm13, dac_calib7, cci_timer1,
> + qdss_stm12, dac_calib8, cci_timer2, blsp1_spi, qdss_stm11,
> + dac_calib9, cci_timer3, cci_async, dac_calib12, blsp_i2c6,
> + qdss_tracectl_a, dac_calib13, qdss_traceclk_a, dac_calib14,
> + dac_calib15, hdmi_rcv, dac_calib16, hdmi_cec, pwr_modem,
> + dac_calib17, hdmi_ddc, pwr_nav, dac_calib18, pwr_crypto,
> + dac_calib19, hdmi_hot, dac_calib20, dac_calib21, pci_e0,
> + dac_calib22, dac_calib23, dac_calib24, tsif1_sync, dac_calib25,
> + sd_write, tsif1_error, blsp_spi2, blsp_uart2, blsp_uim2,
> + qdss_cti, blsp_i2c2, blsp_spi3, blsp_uart3, blsp_uim3, blsp_i2c3,
> + uim3, blsp_spi9, blsp_uart9, blsp_uim9, blsp10_spi, blsp_i2c9,
> + blsp_spi7, blsp_uart7, blsp_uim7, qdss_tracedata_a, blsp_i2c7,
> + qua_mi2s, gcc_gp1_clk_a, ssc_irq, uim4, blsp_spi11, blsp_uart11,
> + blsp_uim11, gcc_gp2_clk_a, gcc_gp3_clk_a, blsp_i2c11, cri_trng0,
> + cri_trng1, cri_trng, qdss_stm18, pri_mi2s, qdss_stm17, blsp_spi4,
> + blsp_uart4, blsp_uim4, qdss_stm16, qdss_stm15, blsp_i2c4,
> + qdss_stm14, dac_calib26, spkr_i2s, audio_ref, lpass_slimbus,
> + isense_dbg, tsense_pwm1, tsense_pwm2, btfm_slimbus, ter_mi2s,
> + qdss_stm22, qdss_stm21, qdss_stm20, qdss_stm19, gcc_gp1_clk_b,
> + sec_mi2s, blsp_spi5, blsp_uart5, blsp_uim5, gcc_gp2_clk_b,
> + gcc_gp3_clk_b, blsp_i2c5, blsp_spi12, blsp_uart12, blsp_uim12,
> + qdss_stm25, qdss_stm31, blsp_i2c12, qdss_stm30, qdss_stm29,
> + tsif1_clk, qdss_stm28, tsif1_en, tsif1_data, sdc4_cmd, qdss_stm27,
> + qdss_traceclk_b, tsif2_error, sdc43, vfr_1, qdss_stm26, tsif2_clk,
> + sdc4_clk, qdss_stm24, tsif2_en, sdc42, qdss_stm23, qdss_tracectl_b,
> + sd_card, tsif2_data, sdc41, tsif2_sync, sdc40, mdp_vsync_p_b,
> + ldo_en, mdp_vsync_s_b, ldo_update, blsp11_uart_tx_b, blsp11_uart_rx_b,
> + blsp11_i2c_sda_b, prng_rosc, blsp11_i2c_scl_b, uim2, uim1, uim_batt,
> + pci_e2, pa_indicator, adsp_ext, ddr_bist, qdss_tracedata_11,
> + qdss_tracedata_12, modem_tsync, nav_dr, nav_pps, pci_e1, gsm_tx,
> + qspi_cs, ssbi2, ssbi1, mss_lte, qspi_clk, qspi0, qspi1, qspi2, qspi3,
> + gpio
Please review this list, there are a few items in here that are not
valid functions in your driver.
[..]
> +
> +Example:
> +
> + tlmm: pinctrl@...0000 {
> + compatible = "qcom,sdm660-pinctrl";
> + reg = <0x1010000 0x300000>;
> + interrupts = <0 208 0>;
Replace the 0s in the interrupts specifier.
> + gpio-controller;
> + gpio-ranges = <&tlmm 0 0 114>;
> + #gpio-cells = <2>;
> + interrupt-controller;
> + #interrupt-cells = <2>;
> +
> + uart_console_active: uart_console_active {
> + mux {
> + pins = "gpio4", "gpio5";
> + function = "blsp_uart8";
> + };
> +
> + config {
> + pins = "gpio4", "gpio5";
> + drive-strength = <2>;
> + bias-disable;
> + };
> + };
This example isn't valid. Please update it, or just drop the pinctrl
state from the example.
> + };
> diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
> index 195492033075..091beadb8a1c 100644
> --- a/drivers/pinctrl/qcom/Kconfig
> +++ b/drivers/pinctrl/qcom/Kconfig
> @@ -147,6 +147,16 @@ config PINCTRL_QCOM_SSBI_PMIC
> which are using SSBI for communication with SoC. Example PMIC's
> devices are pm8058 and pm8921.
>
> +config PINCTRL_SDM660
> + tristate "Qualcomm Technologies Inc SDM660 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_MSM
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + Qualcomm Technologies Inc TLMM block found on the Qualcomm
> + Technologies Inc SDM660 platform.
> +
> +
Extra empty line.
> config PINCTRL_SDM845
> tristate "Qualcomm Technologies Inc SDM845 pin controller driver"
> depends on GPIOLIB && OF
> diff --git a/drivers/pinctrl/qcom/Makefile b/drivers/pinctrl/qcom/Makefile
> index 0c6f3ddc296d..9b08808a2f1c 100644
> --- a/drivers/pinctrl/qcom/Makefile
> +++ b/drivers/pinctrl/qcom/Makefile
> @@ -19,4 +19,5 @@ obj-$(CONFIG_PINCTRL_QCOM_SPMI_PMIC) += pinctrl-spmi-gpio.o
> obj-$(CONFIG_PINCTRL_QCOM_SPMI_PMIC) += pinctrl-spmi-mpp.o
> obj-$(CONFIG_PINCTRL_QCOM_SSBI_PMIC) += pinctrl-ssbi-gpio.o
> obj-$(CONFIG_PINCTRL_QCOM_SSBI_PMIC) += pinctrl-ssbi-mpp.o
> +obj-$(CONFIG_PINCTRL_SDM660) += pinctrl-sdm660.o
> obj-$(CONFIG_PINCTRL_SDM845) += pinctrl-sdm845.o
> diff --git a/drivers/pinctrl/qcom/pinctrl-sdm660.c b/drivers/pinctrl/qcom/pinctrl-sdm660.c
> new file mode 100644
> index 000000000000..ded56111f168
> --- /dev/null
> +++ b/drivers/pinctrl/qcom/pinctrl-sdm660.c
> @@ -0,0 +1,1451 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2016, The Linux Foundation. All rights reserved.
> + * Copyright (c) 2018, Craig Tatlor.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-msm.h"
> +
> +#define NORTH 0x00900000
> +#define CENTER 0x00500000
> +#define SOUTH 0x00100000
Please respin this on top of the QCS404 series, where we describe each
tile explicitly in DT.
The three regions are:
South: 0x03100000 size 0x300000
Center: 0x03500000 size 0x300000
North: 0x03900000 size 0x300000
[..]
> +static const unsigned int sdc1_clk_pins[] = { 114 };
> +static const unsigned int sdc1_cmd_pins[] = { 115 };
> +static const unsigned int sdc1_data_pins[] = { 116 };
> +static const unsigned int sdc2_clk_pins[] = { 117 };
> +static const unsigned int sdc2_cmd_pins[] = { 118 };
> +static const unsigned int sdc2_data_pins[] = { 119 };
> +static const unsigned int sdc1_rclk_pins[] = { 120 };
The numbering of these "fake" pins isn't significant, so please reorder
sdc1_rclk to follow the other sdc1 pins.
> +
> +enum sdm660_functions {
> + msm_mux_blsp_spi1,
There's no harm in sorting this list, but it makes it easier to read.
> +
> +static const struct msm_function sdm660_functions[] = {
> + FUNCTION(blsp_spi1),
Ditto.
[..]
> +static const struct msm_pingroup sdm660_groups[] = {
[..]
> + SDC_QDSD_PINGROUP(sdc1_clk, 0x99a000, 13, 6),
> + SDC_QDSD_PINGROUP(sdc1_cmd, 0x99a000, 11, 3),
> + SDC_QDSD_PINGROUP(sdc1_data, 0x99a000, 9, 0),
> + SDC_QDSD_PINGROUP(sdc2_clk, 0x99b000, 14, 6),
> + SDC_QDSD_PINGROUP(sdc2_cmd, 0x99b000, 11, 3),
> + SDC_QDSD_PINGROUP(sdc2_data, 0x99b000, 9, 0),
> + SDC_QDSD_PINGROUP(sdc1_rclk, 0x99a000, 15, 0),
Move the sdc1_rclk up to the other sdc1 groups.
> +};
Regards,
Bjorn
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