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Message-ID: <Ya5PKNifQ53QUXeQ@builder.lan>
Date: Mon, 6 Dec 2021 11:58:00 -0600
From: Bjorn Andersson <bjorn.andersson@...aro.org>
To: quic_vamslank@...cinc.com
Cc: agross@...nel.org, linus.walleij@...aro.org,
linux-arm-msm@...r.kernel.org, linux-gpio@...r.kernel.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
manivannan.sadhasivam@...aro.org
Subject: Re: [PATCH v5 1/2] dt-bindings: pinctrl: qcom: Add SDX65 pinctrl
bindings
On Wed 01 Dec 18:32 CST 2021, quic_vamslank@...cinc.com wrote:
> From: Vamsi Krishna Lanka <quic_vamslank@...cinc.com>
>
> Add device tree binding Documentation details for Qualcomm SDX65
> pinctrl driver.
>
> Signed-off-by: Vamsi Krishna Lanka <quic_vamslank@...cinc.com>
> Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
> .../bindings/pinctrl/qcom,sdx65-pinctrl.yaml | 174 ++++++++++++++++++
> 1 file changed, 174 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,sdx65-pinctrl.yaml
>
> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sdx65-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,sdx65-pinctrl.yaml
> new file mode 100644
> index 000000000000..f3487717da83
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/qcom,sdx65-pinctrl.yaml
> @@ -0,0 +1,174 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/qcom,sdx65-pinctrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Technologies, Inc. SDX65 TLMM block
> +
> +maintainers:
> + - Vamsi krishna Lanka <quic_vamslank@...cinc.com>
> +
> +description:
> + This binding describes the Top Level Mode Multiplexer block found in the
> + SDX65 platform.
> +
> +properties:
> + compatible:
> + const: qcom,sdx65-tlmm
> +
> + reg:
> + description: Specifies the base address and size of the TLMM register space
> + maxItems: 1
> +
> + interrupts:
> + description: Specifies the TLMM summary IRQ
> + maxItems: 1
> +
> + interrupt-controller: true
> +
> + '#interrupt-cells':
> + description: Specifies the PIN numbers and Flags, as defined in
> + include/dt-bindings/interrupt-controller/irq.h
> + const: 2
> +
> + gpio-controller: true
> +
> + '#gpio-cells':
> + description: Specifying the pin number and flags, as defined in
> + include/dt-bindings/gpio/gpio.h
> + const: 2
> +
> + gpio-ranges:
> + maxItems: 1
> +
> + gpio-reserved-ranges:
> + maxItems: 1
> +
> +#PIN CONFIGURATION NODES
> +patternProperties:
> + '-pins$':
What you describe in this subnode is the pinctrl state, that's why we
decided to make it '-state$' instead of '-pins$'.
So please revert this back to what you had in v4 and fix the example
instead.
> + type: object
> + description:
> + Pinctrl node's client devices use subnodes for desired pin configuration.
> + Client device subnodes use below standard properties.
> + $ref: "/schemas/pinctrl/pincfg-node.yaml"
> +
> + properties:
> + pins:
> + description:
> + List of gpio pins affected by the properties specified in this subnode.
> + items:
> + oneOf:
> + - pattern: "^gpio([0-9]|[1-9][0-9]|10[0-9])$"
I think I might have mislead you on this one. The valid gpios are gpio0
through gpio107 according to the driver. So the last 9 should be a 7.
The 109 in gpio-ranges is correct though, as that's number of gpios in
{gpio0..gpio107 + ufs_reset}.
Thanks,
Bjorn
> + - enum: [ ufs_reset, sdc1_clk, sdc1_cmd, sdc1_data, sdc2_clk, sdc2_cmd, sdc2_data, sdc1_rclk ]
> + minItems: 1
> + maxItems: 150
> +
> + function:
> + description:
> + Specify the alternative function to be configured for the specified
> + pins. Functions are only valid for gpio pins.
> + enum: [ 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 ]
> +
> + drive-strength:
> + enum: [2, 4, 6, 8, 10, 12, 14, 16]
> + default: 2
> + description:
> + Selects the drive strength for the specified pins, in mA.
> +
> + bias-pull-down: true
> +
> + bias-pull-up: true
> +
> + bias-disable: true
> +
> + output-high: true
> +
> + output-low: true
> +
> + required:
> + - pins
> + - function
> +
> + additionalProperties: false
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - interrupt-controller
> + - '#interrupt-cells'
> + - gpio-controller
> + - '#gpio-cells'
> + - gpio-ranges
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + tlmm: pinctrl@...0000 {
> + compatible = "qcom,sdx65-tlmm";
> + reg = <0x03000000 0xdc2000>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + gpio-ranges = <&tlmm 0 0 109>;
> + interrupt-controller;
> + #interrupt-cells = <2>;
> + interrupts = <GIC_SPI 212 IRQ_TYPE_LEVEL_HIGH>;
> +
> + serial-pins {
> + pins = "gpio8", "gpio9";
> + function = "blsp_uart3";
> + drive-strength = <2>;
> + bias-disable;
> + };
> + };
> +...
> --
> 2.33.1
>
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