Re: [PATCH V1 4/8] pinctrl: qcom: Add IPQ9574 pinctrl driver

[Devi Priya <quic_devipriy@xxxxxxxxxxx>]

On 1/26/2023 5:21 AM, Konrad Dybcio wrote:
> On 24.01.2023 15:15, devi priya wrote:
> > Add pinctrl definitions for the TLMM of IPQ9574
> >
> > Co-developed-by: Anusha Rao <quic_anusha@xxxxxxxxxxx>
> > Signed-off-by: Anusha Rao <quic_anusha@xxxxxxxxxxx>
> > Signed-off-by: devi priya <quic_devipriy@xxxxxxxxxxx>
> > ---
> [...]
>
> > +enum ipq9574_functions {
> > +	msm_mux_atest_char,
> > +	msm_mux_atest_char0,
> > +	msm_mux_atest_char1,
> > +	msm_mux_atest_char2,
> > +	msm_mux_atest_char3,
> > +	msm_mux_audio_pdm0,
> > +	msm_mux_audio_pdm1,
> > +	msm_mux_audio_pri,
> > +	msm_mux_audio_sec,
> > +	msm_mux_blsp0_spi,
> > +	msm_mux_blsp0_uart,
> > +	msm_mux_blsp1_i2c,
> > +	msm_mux_blsp1_spi,
> > +	msm_mux_blsp1_uart,
> > +	msm_mux_blsp2_i2c,
> > +	msm_mux_blsp2_spi,
> > +	msm_mux_blsp2_uart,
> > +	msm_mux_blsp3_i2c,
> > +	msm_mux_blsp3_spi,
> > +	msm_mux_blsp3_uart,
> > +	msm_mux_blsp4_i2c,
> > +	msm_mux_blsp4_spi,
> > +	msm_mux_blsp4_uart,
> > +	msm_mux_blsp5_i2c,
> > +	msm_mux_blsp5_uart,
> > +	msm_mux_cri_trng0,
> > +	msm_mux_cri_trng1,
> > +	msm_mux_cri_trng2,
> > +	msm_mux_cri_trng3,
> > +	msm_mux_cxc0,
> > +	msm_mux_cxc1,
> > +	msm_mux_dbg_out,
> > +	msm_mux_dwc_ddrphy,
> > +	msm_mux_gcc_plltest,
> > +	msm_mux_gcc_tlmm,
> > +	msm_mux_gpio,
>
> > +	msm_mux_mac00,
> > +	msm_mux_mac01,
> > +	msm_mux_mac10,
> > +	msm_mux_mac11,
> msm_mux_mac?
Okay, will have msm_mux_mac enum instead of the above entries(00, 01, 
10, 11)
> > +	msm_mux_mdc,
> > +	msm_mux_mdio,
> > +	msm_mux_pcie0_clk,
> > +	msm_mux_pcie0_wake,
> > +	msm_mux_pcie1_clk,
> > +	msm_mux_pcie1_wake,
> > +	msm_mux_pcie2_clk,
> > +	msm_mux_pcie2_wake,
> > +	msm_mux_pcie3_clk,
> > +	msm_mux_pcie3_wake,
> > +	msm_mux_prng_rosc0,
> > +	msm_mux_prng_rosc1,
> > +	msm_mux_prng_rosc2,
> > +	msm_mux_prng_rosc3,
>
> > +	msm_mux_pta1_0,
> > +	msm_mux_pta1_1,
> > +	msm_mux_pta1_2,
> > +	msm_mux_pta20,
> > +	msm_mux_pta21,
> msm_mux_pta?
Okay
> > +	msm_mux_pwm00,
> > +	msm_mux_pwm01,
> > +	msm_mux_pwm02,
> > +	msm_mux_pwm03,
> > +	msm_mux_pwm04,
> > +	msm_mux_pwm10,
> > +	msm_mux_pwm11,
> > +	msm_mux_pwm12,
> > +	msm_mux_pwm13,
> > +	msm_mux_pwm14,
> > +	msm_mux_pwm20,
> > +	msm_mux_pwm21,
> > +	msm_mux_pwm22,
> > +	msm_mux_pwm23,
> > +	msm_mux_pwm24,
> > +	msm_mux_pwm30,
> > +	msm_mux_pwm31,
> > +	msm_mux_pwm32,
> > +	msm_mux_pwm33,
> msm_mux_pwm?
Okay
> [...]
>
> > +
> > +static const int ipq9574_reserved_gpios[] = {
> > +	59, -1
> > +};
> We know it's necessary and it's good that you take care
> of it, but it would be even nicer if you left a comment
> explaining why the rx0/pwm23/qdss_tracedata_a gpio can
> not be accessed and what it's used for.
Sure, will add comments in V3
Reserving the GPIO as it is used for controlling the QFPROM LDO 
regulator by the security component
> Konrad
> > +
> > +static const struct msm_pinctrl_soc_data ipq9574_pinctrl = {
> > +	.pins = ipq9574_pins,
> > +	.npins = ARRAY_SIZE(ipq9574_pins),
> > +	.functions = ipq9574_functions,
> > +	.nfunctions = ARRAY_SIZE(ipq9574_functions),
> > +	.groups = ipq9574_groups,
> > +	.ngroups = ARRAY_SIZE(ipq9574_groups),
> > +	.reserved_gpios = ipq9574_reserved_gpios,
> > +	.ngpios = 65,
> > +};
> > +
> > +static int ipq9574_pinctrl_probe(struct platform_device *pdev)
> > +{
> > +	return msm_pinctrl_probe(pdev, &ipq9574_pinctrl);
> > +}
> > +
> > +static const struct of_device_id ipq9574_pinctrl_of_match[] = {
> > +	{ .compatible = "qcom,ipq9574-tlmm", },
> > +	{ },
> > +};
> > +
> > +static struct platform_driver ipq9574_pinctrl_driver = {
> > +	.driver = {
> > +		.name = "ipq9574-tlmm",
> > +		.of_match_table = ipq9574_pinctrl_of_match,
> > +	},
> > +	.probe = ipq9574_pinctrl_probe,
> > +	.remove = msm_pinctrl_remove,
> > +};
> > +
> > +static int __init ipq9574_pinctrl_init(void)
> > +{
> > +	return platform_driver_register(&ipq9574_pinctrl_driver);
> > +}
> > +arch_initcall(ipq9574_pinctrl_init);
> > +
> > +static void __exit ipq9574_pinctrl_exit(void)
> > +{
> > +	platform_driver_unregister(&ipq9574_pinctrl_driver);
> > +}
> > +module_exit(ipq9574_pinctrl_exit);
> > +
> > +MODULE_DESCRIPTION("QTI IPQ9574 TLMM driver");
> > +MODULE_LICENSE("GPL");
> > +MODULE_DEVICE_TABLE(of, ipq9574_pinctrl_of_match);
Best Regards,
Devi Priya