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path: root/drivers/gpio/gpio-samsung.c
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Diffstat (limited to 'drivers/gpio/gpio-samsung.c')
-rw-r--r--drivers/gpio/gpio-samsung.c403
1 files changed, 215 insertions, 188 deletions
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index 19d6fc0229c3..5d49aff3bb9e 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -2714,12 +2714,224 @@ static __init void exynos_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
2714} 2714}
2715#endif /* defined(CONFIG_ARCH_EXYNOS) && defined(CONFIG_OF) */ 2715#endif /* defined(CONFIG_ARCH_EXYNOS) && defined(CONFIG_OF) */
2716 2716
2717static __init void exynos4_gpiolib_init(void)
2718{
2719#ifdef CONFIG_CPU_EXYNOS4210
2720 struct samsung_gpio_chip *chip;
2721 int i, nr_chips;
2722 void __iomem *gpio_base1, *gpio_base2, *gpio_base3;
2723 int group = 0;
2724 void __iomem *gpx_base;
2725
2726 /* gpio part1 */
2727 gpio_base1 = ioremap(EXYNOS4_PA_GPIO1, SZ_4K);
2728 if (gpio_base1 == NULL) {
2729 pr_err("unable to ioremap for gpio_base1\n");
2730 goto err_ioremap1;
2731 }
2732
2733 chip = exynos4_gpios_1;
2734 nr_chips = ARRAY_SIZE(exynos4_gpios_1);
2735
2736 for (i = 0; i < nr_chips; i++, chip++) {
2737 if (!chip->config) {
2738 chip->config = &exynos_gpio_cfg;
2739 chip->group = group++;
2740 }
2741 exynos_gpiolib_attach_ofnode(chip,
2742 EXYNOS4_PA_GPIO1, i * 0x20);
2743 }
2744 samsung_gpiolib_add_4bit_chips(exynos4_gpios_1,
2745 nr_chips, gpio_base1);
2746
2747 /* gpio part2 */
2748 gpio_base2 = ioremap(EXYNOS4_PA_GPIO2, SZ_4K);
2749 if (gpio_base2 == NULL) {
2750 pr_err("unable to ioremap for gpio_base2\n");
2751 goto err_ioremap2;
2752 }
2753
2754 /* need to set base address for gpx */
2755 chip = &exynos4_gpios_2[16];
2756 gpx_base = gpio_base2 + 0xC00;
2757 for (i = 0; i < 4; i++, chip++, gpx_base += 0x20)
2758 chip->base = gpx_base;
2759
2760 chip = exynos4_gpios_2;
2761 nr_chips = ARRAY_SIZE(exynos4_gpios_2);
2762
2763 for (i = 0; i < nr_chips; i++, chip++) {
2764 if (!chip->config) {
2765 chip->config = &exynos_gpio_cfg;
2766 chip->group = group++;
2767 }
2768 exynos_gpiolib_attach_ofnode(chip,
2769 EXYNOS4_PA_GPIO2, i * 0x20);
2770 }
2771 samsung_gpiolib_add_4bit_chips(exynos4_gpios_2,
2772 nr_chips, gpio_base2);
2773
2774 /* gpio part3 */
2775 gpio_base3 = ioremap(EXYNOS4_PA_GPIO3, SZ_256);
2776 if (gpio_base3 == NULL) {
2777 pr_err("unable to ioremap for gpio_base3\n");
2778 goto err_ioremap3;
2779 }
2780
2781 chip = exynos4_gpios_3;
2782 nr_chips = ARRAY_SIZE(exynos4_gpios_3);
2783
2784 for (i = 0; i < nr_chips; i++, chip++) {
2785 if (!chip->config) {
2786 chip->config = &exynos_gpio_cfg;
2787 chip->group = group++;
2788 }
2789 exynos_gpiolib_attach_ofnode(chip,
2790 EXYNOS4_PA_GPIO3, i * 0x20);
2791 }
2792 samsung_gpiolib_add_4bit_chips(exynos4_gpios_3,
2793 nr_chips, gpio_base3);
2794
2795#if defined(CONFIG_CPU_EXYNOS4210) && defined(CONFIG_S5P_GPIO_INT)
2796 s5p_register_gpioint_bank(IRQ_GPIO_XA, 0, IRQ_GPIO1_NR_GROUPS);
2797 s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS);
2798#endif
2799
2800 return;
2801
2802err_ioremap3:
2803 iounmap(gpio_base2);
2804err_ioremap2:
2805 iounmap(gpio_base1);
2806err_ioremap1:
2807 return;
2808#endif /* CONFIG_CPU_EXYNOS4210 */
2809}
2810
2811static __init void exynos5_gpiolib_init(void)
2812{
2813#ifdef CONFIG_SOC_EXYNOS5250
2814 struct samsung_gpio_chip *chip;
2815 int i, nr_chips;
2816 void __iomem *gpio_base1, *gpio_base2, *gpio_base3, *gpio_base4;
2817 int group = 0;
2818 void __iomem *gpx_base;
2819
2820 /* gpio part1 */
2821 gpio_base1 = ioremap(EXYNOS5_PA_GPIO1, SZ_4K);
2822 if (gpio_base1 == NULL) {
2823 pr_err("unable to ioremap for gpio_base1\n");
2824 goto err_ioremap1;
2825 }
2826
2827 /* need to set base address for gpx */
2828 chip = &exynos5_gpios_1[20];
2829 gpx_base = gpio_base1 + 0xC00;
2830 for (i = 0; i < 4; i++, chip++, gpx_base += 0x20)
2831 chip->base = gpx_base;
2832
2833 chip = exynos5_gpios_1;
2834 nr_chips = ARRAY_SIZE(exynos5_gpios_1);
2835
2836 for (i = 0; i < nr_chips; i++, chip++) {
2837 if (!chip->config) {
2838 chip->config = &exynos_gpio_cfg;
2839 chip->group = group++;
2840 }
2841 exynos_gpiolib_attach_ofnode(chip,
2842 EXYNOS5_PA_GPIO1, i * 0x20);
2843 }
2844 samsung_gpiolib_add_4bit_chips(exynos5_gpios_1,
2845 nr_chips, gpio_base1);
2846
2847 /* gpio part2 */
2848 gpio_base2 = ioremap(EXYNOS5_PA_GPIO2, SZ_4K);
2849 if (gpio_base2 == NULL) {
2850 pr_err("unable to ioremap for gpio_base2\n");
2851 goto err_ioremap2;
2852 }
2853
2854 chip = exynos5_gpios_2;
2855 nr_chips = ARRAY_SIZE(exynos5_gpios_2);
2856
2857 for (i = 0; i < nr_chips; i++, chip++) {
2858 if (!chip->config) {
2859 chip->config = &exynos_gpio_cfg;
2860 chip->group = group++;
2861 }
2862 exynos_gpiolib_attach_ofnode(chip,
2863 EXYNOS5_PA_GPIO2, i * 0x20);
2864 }
2865 samsung_gpiolib_add_4bit_chips(exynos5_gpios_2,
2866 nr_chips, gpio_base2);
2867
2868 /* gpio part3 */
2869 gpio_base3 = ioremap(EXYNOS5_PA_GPIO3, SZ_4K);
2870 if (gpio_base3 == NULL) {
2871 pr_err("unable to ioremap for gpio_base3\n");
2872 goto err_ioremap3;
2873 }
2874
2875 /* need to set base address for gpv */
2876 exynos5_gpios_3[0].base = gpio_base3;
2877 exynos5_gpios_3[1].base = gpio_base3 + 0x20;
2878 exynos5_gpios_3[2].base = gpio_base3 + 0x60;
2879 exynos5_gpios_3[3].base = gpio_base3 + 0x80;
2880 exynos5_gpios_3[4].base = gpio_base3 + 0xC0;
2881
2882 chip = exynos5_gpios_3;
2883 nr_chips = ARRAY_SIZE(exynos5_gpios_3);
2884
2885 for (i = 0; i < nr_chips; i++, chip++) {
2886 if (!chip->config) {
2887 chip->config = &exynos_gpio_cfg;
2888 chip->group = group++;
2889 }
2890 exynos_gpiolib_attach_ofnode(chip,
2891 EXYNOS5_PA_GPIO3, i * 0x20);
2892 }
2893 samsung_gpiolib_add_4bit_chips(exynos5_gpios_3,
2894 nr_chips, gpio_base3);
2895
2896 /* gpio part4 */
2897 gpio_base4 = ioremap(EXYNOS5_PA_GPIO4, SZ_4K);
2898 if (gpio_base4 == NULL) {
2899 pr_err("unable to ioremap for gpio_base4\n");
2900 goto err_ioremap4;
2901 }
2902
2903 chip = exynos5_gpios_4;
2904 nr_chips = ARRAY_SIZE(exynos5_gpios_4);
2905
2906 for (i = 0; i < nr_chips; i++, chip++) {
2907 if (!chip->config) {
2908 chip->config = &exynos_gpio_cfg;
2909 chip->group = group++;
2910 }
2911 exynos_gpiolib_attach_ofnode(chip,
2912 EXYNOS5_PA_GPIO4, i * 0x20);
2913 }
2914 samsung_gpiolib_add_4bit_chips(exynos5_gpios_4,
2915 nr_chips, gpio_base4);
2916 return;
2917
2918err_ioremap4:
2919 iounmap(gpio_base3);
2920err_ioremap3:
2921 iounmap(gpio_base2);
2922err_ioremap2:
2923 iounmap(gpio_base1);
2924err_ioremap1:
2925 return;
2926
2927#endif /* CONFIG_SOC_EXYNOS5250 */
2928}
2929
2717/* TODO: cleanup soc_is_* */ 2930/* TODO: cleanup soc_is_* */
2718static __init int samsung_gpiolib_init(void) 2931static __init int samsung_gpiolib_init(void)
2719{ 2932{
2720 struct samsung_gpio_chip *chip; 2933 struct samsung_gpio_chip *chip;
2721 int i, nr_chips; 2934 int i, nr_chips;
2722 void __iomem *gpio_base1, *gpio_base2, *gpio_base3, *gpio_base4;
2723 int group = 0; 2935 int group = 0;
2724 2936
2725 samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs)); 2937 samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
@@ -2785,200 +2997,15 @@ static __init int samsung_gpiolib_init(void)
2785 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR); 2997 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
2786#endif 2998#endif
2787 } else if (soc_is_exynos4210()) { 2999 } else if (soc_is_exynos4210()) {
2788#ifdef CONFIG_CPU_EXYNOS4210 3000 exynos4_gpiolib_init();
2789 void __iomem *gpx_base;
2790
2791 /* gpio part1 */
2792 gpio_base1 = ioremap(EXYNOS4_PA_GPIO1, SZ_4K);
2793 if (gpio_base1 == NULL) {
2794 pr_err("unable to ioremap for gpio_base1\n");
2795 goto err_ioremap1;
2796 }
2797
2798 chip = exynos4_gpios_1;
2799 nr_chips = ARRAY_SIZE(exynos4_gpios_1);
2800
2801 for (i = 0; i < nr_chips; i++, chip++) {
2802 if (!chip->config) {
2803 chip->config = &exynos_gpio_cfg;
2804 chip->group = group++;
2805 }
2806 exynos_gpiolib_attach_ofnode(chip,
2807 EXYNOS4_PA_GPIO1, i * 0x20);
2808 }
2809 samsung_gpiolib_add_4bit_chips(exynos4_gpios_1,
2810 nr_chips, gpio_base1);
2811
2812 /* gpio part2 */
2813 gpio_base2 = ioremap(EXYNOS4_PA_GPIO2, SZ_4K);
2814 if (gpio_base2 == NULL) {
2815 pr_err("unable to ioremap for gpio_base2\n");
2816 goto err_ioremap2;
2817 }
2818
2819 /* need to set base address for gpx */
2820 chip = &exynos4_gpios_2[16];
2821 gpx_base = gpio_base2 + 0xC00;
2822 for (i = 0; i < 4; i++, chip++, gpx_base += 0x20)
2823 chip->base = gpx_base;
2824
2825 chip = exynos4_gpios_2;
2826 nr_chips = ARRAY_SIZE(exynos4_gpios_2);
2827
2828 for (i = 0; i < nr_chips; i++, chip++) {
2829 if (!chip->config) {
2830 chip->config = &exynos_gpio_cfg;
2831 chip->group = group++;
2832 }
2833 exynos_gpiolib_attach_ofnode(chip,
2834 EXYNOS4_PA_GPIO2, i * 0x20);
2835 }
2836 samsung_gpiolib_add_4bit_chips(exynos4_gpios_2,
2837 nr_chips, gpio_base2);
2838
2839 /* gpio part3 */
2840 gpio_base3 = ioremap(EXYNOS4_PA_GPIO3, SZ_256);
2841 if (gpio_base3 == NULL) {
2842 pr_err("unable to ioremap for gpio_base3\n");
2843 goto err_ioremap3;
2844 }
2845
2846 chip = exynos4_gpios_3;
2847 nr_chips = ARRAY_SIZE(exynos4_gpios_3);
2848
2849 for (i = 0; i < nr_chips; i++, chip++) {
2850 if (!chip->config) {
2851 chip->config = &exynos_gpio_cfg;
2852 chip->group = group++;
2853 }
2854 exynos_gpiolib_attach_ofnode(chip,
2855 EXYNOS4_PA_GPIO3, i * 0x20);
2856 }
2857 samsung_gpiolib_add_4bit_chips(exynos4_gpios_3,
2858 nr_chips, gpio_base3);
2859
2860#if defined(CONFIG_CPU_EXYNOS4210) && defined(CONFIG_S5P_GPIO_INT)
2861 s5p_register_gpioint_bank(IRQ_GPIO_XA, 0, IRQ_GPIO1_NR_GROUPS);
2862 s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS);
2863#endif
2864
2865#endif /* CONFIG_CPU_EXYNOS4210 */
2866 } else if (soc_is_exynos5250()) { 3001 } else if (soc_is_exynos5250()) {
2867#ifdef CONFIG_SOC_EXYNOS5250 3002 exynos5_gpiolib_init();
2868 void __iomem *gpx_base;
2869
2870 /* gpio part1 */
2871 gpio_base1 = ioremap(EXYNOS5_PA_GPIO1, SZ_4K);
2872 if (gpio_base1 == NULL) {
2873 pr_err("unable to ioremap for gpio_base1\n");
2874 goto err_ioremap1;
2875 }
2876
2877 /* need to set base address for gpx */
2878 chip = &exynos5_gpios_1[20];
2879 gpx_base = gpio_base1 + 0xC00;
2880 for (i = 0; i < 4; i++, chip++, gpx_base += 0x20)
2881 chip->base = gpx_base;
2882
2883 chip = exynos5_gpios_1;
2884 nr_chips = ARRAY_SIZE(exynos5_gpios_1);
2885
2886 for (i = 0; i < nr_chips; i++, chip++) {
2887 if (!chip->config) {
2888 chip->config = &exynos_gpio_cfg;
2889 chip->group = group++;
2890 }
2891 exynos_gpiolib_attach_ofnode(chip,
2892 EXYNOS5_PA_GPIO1, i * 0x20);
2893 }
2894 samsung_gpiolib_add_4bit_chips(exynos5_gpios_1,
2895 nr_chips, gpio_base1);
2896
2897 /* gpio part2 */
2898 gpio_base2 = ioremap(EXYNOS5_PA_GPIO2, SZ_4K);
2899 if (gpio_base2 == NULL) {
2900 pr_err("unable to ioremap for gpio_base2\n");
2901 goto err_ioremap2;
2902 }
2903
2904 chip = exynos5_gpios_2;
2905 nr_chips = ARRAY_SIZE(exynos5_gpios_2);
2906
2907 for (i = 0; i < nr_chips; i++, chip++) {
2908 if (!chip->config) {
2909 chip->config = &exynos_gpio_cfg;
2910 chip->group = group++;
2911 }
2912 exynos_gpiolib_attach_ofnode(chip,
2913 EXYNOS5_PA_GPIO2, i * 0x20);
2914 }
2915 samsung_gpiolib_add_4bit_chips(exynos5_gpios_2,
2916 nr_chips, gpio_base2);
2917
2918 /* gpio part3 */
2919 gpio_base3 = ioremap(EXYNOS5_PA_GPIO3, SZ_4K);
2920 if (gpio_base3 == NULL) {
2921 pr_err("unable to ioremap for gpio_base3\n");
2922 goto err_ioremap3;
2923 }
2924
2925 /* need to set base address for gpv */
2926 exynos5_gpios_3[0].base = gpio_base3;
2927 exynos5_gpios_3[1].base = gpio_base3 + 0x20;
2928 exynos5_gpios_3[2].base = gpio_base3 + 0x60;
2929 exynos5_gpios_3[3].base = gpio_base3 + 0x80;
2930 exynos5_gpios_3[4].base = gpio_base3 + 0xC0;
2931
2932 chip = exynos5_gpios_3;
2933 nr_chips = ARRAY_SIZE(exynos5_gpios_3);
2934
2935 for (i = 0; i < nr_chips; i++, chip++) {
2936 if (!chip->config) {
2937 chip->config = &exynos_gpio_cfg;
2938 chip->group = group++;
2939 }
2940 exynos_gpiolib_attach_ofnode(chip,
2941 EXYNOS5_PA_GPIO3, i * 0x20);
2942 }
2943 samsung_gpiolib_add_4bit_chips(exynos5_gpios_3,
2944 nr_chips, gpio_base3);
2945
2946 /* gpio part4 */
2947 gpio_base4 = ioremap(EXYNOS5_PA_GPIO4, SZ_4K);
2948 if (gpio_base4 == NULL) {
2949 pr_err("unable to ioremap for gpio_base4\n");
2950 goto err_ioremap4;
2951 }
2952
2953 chip = exynos5_gpios_4;
2954 nr_chips = ARRAY_SIZE(exynos5_gpios_4);
2955
2956 for (i = 0; i < nr_chips; i++, chip++) {
2957 if (!chip->config) {
2958 chip->config = &exynos_gpio_cfg;
2959 chip->group = group++;
2960 }
2961 exynos_gpiolib_attach_ofnode(chip,
2962 EXYNOS5_PA_GPIO4, i * 0x20);
2963 }
2964 samsung_gpiolib_add_4bit_chips(exynos5_gpios_4,
2965 nr_chips, gpio_base4);
2966#endif /* CONFIG_SOC_EXYNOS5250 */
2967 } else { 3003 } else {
2968 WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n"); 3004 WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n");
2969 return -ENODEV; 3005 return -ENODEV;
2970 } 3006 }
2971 3007
2972 return 0; 3008 return 0;
2973
2974err_ioremap4:
2975 iounmap(gpio_base3);
2976err_ioremap3:
2977 iounmap(gpio_base2);
2978err_ioremap2:
2979 iounmap(gpio_base1);
2980err_ioremap1:
2981 return -ENOMEM;
2982} 3009}
2983core_initcall(samsung_gpiolib_init); 3010core_initcall(samsung_gpiolib_init);
2984 3011
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-30 19:20:30 -0400