Message-ID: <20180926165432.GC27436@tuxbook-pro>
Date:   Wed, 26 Sep 2018 09:54:32 -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 v4 2/2] dt-bindings: pinctrl: qcom: Add SDM660 pinctrl
 binding

On Wed 26 Sep 09:26 PDT 2018, Craig Tatlor wrote:

> Add the binding for the TLMM pinctrl block found in the SDM660 platform.
> 
> Signed-off-by: Craig Tatlor <ctatlor97@...il.com>

Thanks for the updates Craig.

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>

Regards,
Bjorn

> ---
> Changes from v3: 
>    Updated for tile structure
>    change irq field
> 
>  .../bindings/pinctrl/qcom,sdm660-pinctrl.txt  | 181 ++++++++++++++++++
>  1 file changed, 181 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,sdm660-pinctrl.txt
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sdm660-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,sdm660-pinctrl.txt
> new file mode 100644
> index 000000000000..97e6622c0b85
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/qcom,sdm660-pinctrl.txt
> @@ -0,0 +1,191 @@
> +Qualcomm Technologies, Inc. SDM660 TLMM block
> +
> +This binding describes the Top Level Mode Multiplexer block found in the
> +SDM660 platform.
> +
> +- compatible:
> +	Usage: required
> +	Value type: <string>
> +	Definition: must be "qcom,sdm660-pinctrl" or
> +		    "qcom,sdm630-pinctrl".
> +
> +- reg:
> +	Usage: required
> +	Value type: <prop-encoded-array>
> +	Definition: the base address and size of the north, center and south
> +		    TLMM tiles.
> +
> +- reg-names:
> +       Usage: required
> +       Value type: <stringlist>
> +       Definition: names for the cells of reg, must contain "north", "center"
> +                   and "south".
> +
> +- interrupts:
> +	Usage: required
> +	Value type: <prop-encoded-array>
> +	Definition: should specify the TLMM summary IRQ.
> +
> +- interrupt-controller:
> +	Usage: required
> +	Value type: <none>
> +	Definition: identifies this node as an interrupt controller
> +
> +- #interrupt-cells:
> +	Usage: required
> +	Value type: <u32>
> +	Definition: must be 2. Specifying the pin number and flags, as defined
> +		    in <dt-bindings/interrupt-controller/irq.h>
> +
> +- gpio-controller:
> +	Usage: required
> +	Value type: <none>
> +	Definition: identifies this node as a gpio controller
> +
> +- gpio-ranges:
> +	Usage: required
> +	Value type: <prop-encoded-array>
> +	Definition: Specifies the mapping between gpio controller and
> +		    pin-controller pins.
> +
> +- #gpio-cells:
> +	Usage: required
> +	Value type: <u32>
> +	Definition: must be 2. Specifying the pin number and flags, as defined
> +		    in <dt-bindings/gpio/gpio.h>
> +
> +Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for
> +a general description of GPIO and interrupt bindings.
> +
> +Please refer to pinctrl-bindings.txt in this directory for details of the
> +common pinctrl bindings used by client devices, including the meaning of the
> +phrase "pin configuration node".
> +
> +The pin configuration nodes act as a container for an arbitrary number of
> +subnodes. Each of these subnodes represents some desired configuration for a
> +pin, a group, or a list of pins or groups. This configuration can include the
> +mux function to select on those pin(s)/group(s), and various pin configuration
> +parameters, such as pull-up, drive strength, etc.
> +
> +
> +PIN CONFIGURATION NODES:
> +
> +The name of each subnode is not important; all subnodes should be enumerated
> +and processed purely based on their content.
> +
> +Each subnode only affects those parameters that are explicitly listed. In
> +other words, a subnode that lists a mux function but no pin configuration
> +parameters implies no information about any pin configuration parameters.
> +Similarly, a pin subnode that describes a pullup parameter implies no
> +information about e.g. the mux function.
> +
> +
> +The following generic properties as defined in pinctrl-bindings.txt are valid
> +to specify in a pin configuration subnode:
> +
> +- pins:
> +	Usage: required
> +	Value type: <string-array>
> +	Definition: List of gpio pins affected by the properties specified in
> +		    this subnode.  Valid pins are:
> +		    gpio0-gpio113,
> +		        Supports mux, bias and drive-strength
> +		    sdc1_clk, sdc1_cmd, sdc1_data sdc2_clk, sdc2_cmd, sdc2_data sdc1_rclk,
> +		        Supports bias and drive-strength
> +
> +- 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:
> +		    adsp_ext, agera_pll, atest_char, atest_char0, atest_char1,
> +		    atest_char2, atest_char3, atest_gpsadc0, atest_gpsadc1,
> +		    atest_tsens, atest_tsens2, atest_usb1, atest_usb10,
> +		    atest_usb11, atest_usb12, atest_usb13, atest_usb2,
> +		    atest_usb20, atest_usb21, atest_usb22, atest_usb23,
> +		    audio_ref, bimc_dte0, bimc_dte1, blsp_i2c1, blsp_i2c2,
> +		    blsp_i2c3, blsp_i2c4, blsp_i2c5, blsp_i2c6, blsp_i2c7,
> +		    blsp_i2c8_a, blsp_i2c8_b, blsp_spi1, blsp_spi2, blsp_spi3,
> +		    blsp_spi3_cs1, blsp_spi3_cs2, blsp_spi4, blsp_spi5,
> +		    blsp_spi6, blsp_spi7, blsp_spi8_a, blsp_spi8_b,
> +		    blsp_spi8_cs1, blsp_spi8_cs2, blsp_uart1, blsp_uart2,
> +		    blsp_uart5, blsp_uart6_a, blsp_uart6_b, blsp_uim1,
> +		    blsp_uim2, blsp_uim5, blsp_uim6, cam_mclk, cci_async,
> +		    cci_i2c, cri_trng, cri_trng0, cri_trng1, dbg_out, ddr_bist,
> +		    gcc_gp1, gcc_gp2, gcc_gp3, gpio, gps_tx_a, gps_tx_b, gps_tx_c,
> +		    isense_dbg, jitter_bist, ldo_en, ldo_update, m_voc, mdp_vsync,
> +		    mdss_vsync0, mdss_vsync1, mdss_vsync2, mdss_vsync3, mss_lte,
> +		    nav_pps_a, nav_pps_b, nav_pps_c, pa_indicator, phase_flag0,
> +		    phase_flag1, phase_flag10, phase_flag11, phase_flag12,
> +		    phase_flag13, phase_flag14, phase_flag15, phase_flag16,
> +		    phase_flag17, phase_flag18, phase_flag19, phase_flag2,
> +		    phase_flag20, phase_flag21, phase_flag22, phase_flag23,
> +		    phase_flag24, phase_flag25, phase_flag26, phase_flag27,
> +		    phase_flag28, phase_flag29, phase_flag3, phase_flag30,
> +		    phase_flag31, phase_flag4, phase_flag5, phase_flag6,
> +		    phase_flag7, phase_flag8, phase_flag9, pll_bypassnl,
> +		    pll_reset, pri_mi2s, pri_mi2s_ws, prng_rosc, pwr_crypto,
> +		    pwr_modem, pwr_nav, qdss_cti0_a, qdss_cti0_b, qdss_cti1_a,
> +		    qdss_cti1_b, qdss_gpio, qdss_gpio0, qdss_gpio1, qdss_gpio10,
> +		    qdss_gpio11, qdss_gpio12, qdss_gpio13, qdss_gpio14, qdss_gpio15,
> +		    qdss_gpio2, qdss_gpio3, qdss_gpio4, qdss_gpio5, qdss_gpio6,
> +		    qdss_gpio7, qdss_gpio8, qdss_gpio9, qlink_enable, qlink_request,
> +		    qspi_clk, qspi_cs, qspi_data0, qspi_data1, qspi_data2,
> +		    qspi_data3, qspi_resetn, sec_mi2s, sndwire_clk, sndwire_data,
> +		    sp_cmu, ssc_irq, tgu_ch0, tgu_ch1, tsense_pwm1, tsense_pwm2,
> +		    uim1_clk, uim1_data, uim1_present, uim1_reset, uim2_clk,
> +		    uim2_data, uim2_present, uim2_reset, uim_batt, vfr_1,
> +		    vsense_clkout, vsense_data0, vsense_data1, vsense_mode,
> +		    wlan1_adc0, wlan1_adc1, wlan2_adc0, wlan2_adc1
> +
> +- bias-disable:
> +	Usage: optional
> +	Value type: <none>
> +	Definition: The specified pins should be configued as no pull.
> +
> +- bias-pull-down:
> +	Usage: optional
> +	Value type: <none>
> +	Definition: The specified pins should be configued as pull down.
> +
> +- bias-pull-up:
> +	Usage: optional
> +	Value type: <none>
> +	Definition: The specified pins should be configued as pull up.
> +
> +- output-high:
> +	Usage: optional
> +	Value type: <none>
> +	Definition: The specified pins are configured in output mode, driven
> +		    high.
> +		    Not valid for sdc pins.
> +
> +- output-low:
> +	Usage: optional
> +	Value type: <none>
> +	Definition: The specified pins are configured in output mode, driven
> +		    low.
> +		    Not valid for sdc pins.
> +
> +- drive-strength:
> +	Usage: optional
> +	Value type: <u32>
> +	Definition: Selects the drive strength for the specified pins, in mA.
> +		    Valid values are: 2, 4, 6, 8, 10, 12, 14 and 16
> +
> +Example:
> +
> +	tlmm: pinctrl@...0000 {
> +		compatible = "qcom,sdm660-pinctrl";
> +		reg = <0x3100000 0x200000>,
> +		      <0x3500000 0x200000>,
> +		      <0x3900000 0x200000>;
> +		reg-names = "south", "center", "north";
> +		interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
> +		gpio-controller;
> +		gpio-ranges = <&tlmm 0 0 114>;
> +		#gpio-cells = <2>;
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +	};
> -- 
> 2.18.0

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