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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 20:39:42 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 20:39:42 +0400
commit813a95e5b4fa936bbde10ef89188932745dcd7f4 (patch)
tree571ca345861ffb89b45fabe26fcab4e133c8537b /drivers/pinctrl/spear/pinctrl-spear310.c
parent9f639269ed1522c7d69c54cc8b80ab8ee53fcb10 (diff)
parentf3f08dcb9965f42378851ce888fb7539607712e6 (diff)
downloadlinux-813a95e5b4fa936bbde10ef89188932745dcd7f4.tar.xz
Merge tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm soc-specific pinctrl changes from Olof Johansson: "With this, five platforms are moving to the relatively new pinctrl subsystem for their pin management, replacing the older soc specific in-kernel interfaces with common code. There is quite a bit of net addition of code for each platform being added to the pinctrl subsystem. But the payback comes later when adding new boards can be done by only providing new device trees instead." Fix up trivial conflicts in arch/arm/mach-ux500/{Makefile,board-mop500.c} * tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (61 commits) mtd: nand: gpmi: fix compile error caused by pinctrl call ARM: PRIMA2: select PINCTRL and PINCTRL_SIRF in Kconfig ARM: nomadik: enable PINCTRL_NOMADIK where needed ARM: mxs: enable pinctrl support video: mxsfb: adopt pinctrl support ASoC: mxs-saif: adopt pinctrl support i2c: mxs: adopt pinctrl support mtd: nand: gpmi: adopt pinctrl support mmc: mxs-mmc: adopt pinctrl support serial: mxs-auart: adopt pinctrl support serial: amba-pl011: adopt pinctrl support spi/imx: adopt pinctrl support i2c: imx: adopt pinctrl support can: flexcan: adopt pinctrl support net: fec: adopt pinctrl support ARM: ux500: switch MSP to using pinctrl for pins ARM: ux500: alter MSP registration to return a device pointer ARM: ux500: switch to using pinctrl for uart0 ARM: ux500: delete custom pin control system ARM: ux500: switch over to Nomadik pinctrl driver ...
Diffstat (limited to 'drivers/pinctrl/spear/pinctrl-spear310.c')
-rw-r--r--drivers/pinctrl/spear/pinctrl-spear310.c431
1 files changed, 431 insertions, 0 deletions
diff --git a/drivers/pinctrl/spear/pinctrl-spear310.c b/drivers/pinctrl/spear/pinctrl-spear310.c
new file mode 100644
index 000000000000..1a9707605125
--- /dev/null
+++ b/drivers/pinctrl/spear/pinctrl-spear310.c
@@ -0,0 +1,431 @@
+/*
+ * Driver for the ST Microelectronics SPEAr310 pinmux
+ *
+ * Copyright (C) 2012 ST Microelectronics
+ * Viresh Kumar <viresh.kumar@st.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include "pinctrl-spear3xx.h"
+
+#define DRIVER_NAME "spear310-pinmux"
+
+/* addresses */
+#define PMX_CONFIG_REG 0x08
+
+/* emi_cs_0_to_5_pins */
+static const unsigned emi_cs_0_to_5_pins[] = { 45, 46, 47, 48, 49, 50 };
+static struct spear_muxreg emi_cs_0_to_5_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_TIMER_0_1_MASK | PMX_TIMER_2_3_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux emi_cs_0_to_5_modemux[] = {
+ {
+ .muxregs = emi_cs_0_to_5_muxreg,
+ .nmuxregs = ARRAY_SIZE(emi_cs_0_to_5_muxreg),
+ },
+};
+
+static struct spear_pingroup emi_cs_0_to_5_pingroup = {
+ .name = "emi_cs_0_to_5_grp",
+ .pins = emi_cs_0_to_5_pins,
+ .npins = ARRAY_SIZE(emi_cs_0_to_5_pins),
+ .modemuxs = emi_cs_0_to_5_modemux,
+ .nmodemuxs = ARRAY_SIZE(emi_cs_0_to_5_modemux),
+};
+
+static const char *const emi_cs_0_to_5_grps[] = { "emi_cs_0_to_5_grp" };
+static struct spear_function emi_cs_0_to_5_function = {
+ .name = "emi",
+ .groups = emi_cs_0_to_5_grps,
+ .ngroups = ARRAY_SIZE(emi_cs_0_to_5_grps),
+};
+
+/* uart1_pins */
+static const unsigned uart1_pins[] = { 0, 1 };
+static struct spear_muxreg uart1_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_FIRDA_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux uart1_modemux[] = {
+ {
+ .muxregs = uart1_muxreg,
+ .nmuxregs = ARRAY_SIZE(uart1_muxreg),
+ },
+};
+
+static struct spear_pingroup uart1_pingroup = {
+ .name = "uart1_grp",
+ .pins = uart1_pins,
+ .npins = ARRAY_SIZE(uart1_pins),
+ .modemuxs = uart1_modemux,
+ .nmodemuxs = ARRAY_SIZE(uart1_modemux),
+};
+
+static const char *const uart1_grps[] = { "uart1_grp" };
+static struct spear_function uart1_function = {
+ .name = "uart1",
+ .groups = uart1_grps,
+ .ngroups = ARRAY_SIZE(uart1_grps),
+};
+
+/* uart2_pins */
+static const unsigned uart2_pins[] = { 43, 44 };
+static struct spear_muxreg uart2_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_TIMER_0_1_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux uart2_modemux[] = {
+ {
+ .muxregs = uart2_muxreg,
+ .nmuxregs = ARRAY_SIZE(uart2_muxreg),
+ },
+};
+
+static struct spear_pingroup uart2_pingroup = {
+ .name = "uart2_grp",
+ .pins = uart2_pins,
+ .npins = ARRAY_SIZE(uart2_pins),
+ .modemuxs = uart2_modemux,
+ .nmodemuxs = ARRAY_SIZE(uart2_modemux),
+};
+
+static const char *const uart2_grps[] = { "uart2_grp" };
+static struct spear_function uart2_function = {
+ .name = "uart2",
+ .groups = uart2_grps,
+ .ngroups = ARRAY_SIZE(uart2_grps),
+};
+
+/* uart3_pins */
+static const unsigned uart3_pins[] = { 37, 38 };
+static struct spear_muxreg uart3_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_UART0_MODEM_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux uart3_modemux[] = {
+ {
+ .muxregs = uart3_muxreg,
+ .nmuxregs = ARRAY_SIZE(uart3_muxreg),
+ },
+};
+
+static struct spear_pingroup uart3_pingroup = {
+ .name = "uart3_grp",
+ .pins = uart3_pins,
+ .npins = ARRAY_SIZE(uart3_pins),
+ .modemuxs = uart3_modemux,
+ .nmodemuxs = ARRAY_SIZE(uart3_modemux),
+};
+
+static const char *const uart3_grps[] = { "uart3_grp" };
+static struct spear_function uart3_function = {
+ .name = "uart3",
+ .groups = uart3_grps,
+ .ngroups = ARRAY_SIZE(uart3_grps),
+};
+
+/* uart4_pins */
+static const unsigned uart4_pins[] = { 39, 40 };
+static struct spear_muxreg uart4_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_UART0_MODEM_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux uart4_modemux[] = {
+ {
+ .muxregs = uart4_muxreg,
+ .nmuxregs = ARRAY_SIZE(uart4_muxreg),
+ },
+};
+
+static struct spear_pingroup uart4_pingroup = {
+ .name = "uart4_grp",
+ .pins = uart4_pins,
+ .npins = ARRAY_SIZE(uart4_pins),
+ .modemuxs = uart4_modemux,
+ .nmodemuxs = ARRAY_SIZE(uart4_modemux),
+};
+
+static const char *const uart4_grps[] = { "uart4_grp" };
+static struct spear_function uart4_function = {
+ .name = "uart4",
+ .groups = uart4_grps,
+ .ngroups = ARRAY_SIZE(uart4_grps),
+};
+
+/* uart5_pins */
+static const unsigned uart5_pins[] = { 41, 42 };
+static struct spear_muxreg uart5_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_UART0_MODEM_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux uart5_modemux[] = {
+ {
+ .muxregs = uart5_muxreg,
+ .nmuxregs = ARRAY_SIZE(uart5_muxreg),
+ },
+};
+
+static struct spear_pingroup uart5_pingroup = {
+ .name = "uart5_grp",
+ .pins = uart5_pins,
+ .npins = ARRAY_SIZE(uart5_pins),
+ .modemuxs = uart5_modemux,
+ .nmodemuxs = ARRAY_SIZE(uart5_modemux),
+};
+
+static const char *const uart5_grps[] = { "uart5_grp" };
+static struct spear_function uart5_function = {
+ .name = "uart5",
+ .groups = uart5_grps,
+ .ngroups = ARRAY_SIZE(uart5_grps),
+};
+
+/* fsmc_pins */
+static const unsigned fsmc_pins[] = { 34, 35, 36 };
+static struct spear_muxreg fsmc_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_SSP_CS_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux fsmc_modemux[] = {
+ {
+ .muxregs = fsmc_muxreg,
+ .nmuxregs = ARRAY_SIZE(fsmc_muxreg),
+ },
+};
+
+static struct spear_pingroup fsmc_pingroup = {
+ .name = "fsmc_grp",
+ .pins = fsmc_pins,
+ .npins = ARRAY_SIZE(fsmc_pins),
+ .modemuxs = fsmc_modemux,
+ .nmodemuxs = ARRAY_SIZE(fsmc_modemux),
+};
+
+static const char *const fsmc_grps[] = { "fsmc_grp" };
+static struct spear_function fsmc_function = {
+ .name = "fsmc",
+ .groups = fsmc_grps,
+ .ngroups = ARRAY_SIZE(fsmc_grps),
+};
+
+/* rs485_0_pins */
+static const unsigned rs485_0_pins[] = { 19, 20, 21, 22, 23 };
+static struct spear_muxreg rs485_0_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_MII_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux rs485_0_modemux[] = {
+ {
+ .muxregs = rs485_0_muxreg,
+ .nmuxregs = ARRAY_SIZE(rs485_0_muxreg),
+ },
+};
+
+static struct spear_pingroup rs485_0_pingroup = {
+ .name = "rs485_0_grp",
+ .pins = rs485_0_pins,
+ .npins = ARRAY_SIZE(rs485_0_pins),
+ .modemuxs = rs485_0_modemux,
+ .nmodemuxs = ARRAY_SIZE(rs485_0_modemux),
+};
+
+static const char *const rs485_0_grps[] = { "rs485_0" };
+static struct spear_function rs485_0_function = {
+ .name = "rs485_0",
+ .groups = rs485_0_grps,
+ .ngroups = ARRAY_SIZE(rs485_0_grps),
+};
+
+/* rs485_1_pins */
+static const unsigned rs485_1_pins[] = { 14, 15, 16, 17, 18 };
+static struct spear_muxreg rs485_1_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_MII_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux rs485_1_modemux[] = {
+ {
+ .muxregs = rs485_1_muxreg,
+ .nmuxregs = ARRAY_SIZE(rs485_1_muxreg),
+ },
+};
+
+static struct spear_pingroup rs485_1_pingroup = {
+ .name = "rs485_1_grp",
+ .pins = rs485_1_pins,
+ .npins = ARRAY_SIZE(rs485_1_pins),
+ .modemuxs = rs485_1_modemux,
+ .nmodemuxs = ARRAY_SIZE(rs485_1_modemux),
+};
+
+static const char *const rs485_1_grps[] = { "rs485_1" };
+static struct spear_function rs485_1_function = {
+ .name = "rs485_1",
+ .groups = rs485_1_grps,
+ .ngroups = ARRAY_SIZE(rs485_1_grps),
+};
+
+/* tdm_pins */
+static const unsigned tdm_pins[] = { 10, 11, 12, 13 };
+static struct spear_muxreg tdm_muxreg[] = {
+ {
+ .reg = PMX_CONFIG_REG,
+ .mask = PMX_MII_MASK,
+ .val = 0,
+ },
+};
+
+static struct spear_modemux tdm_modemux[] = {
+ {
+ .muxregs = tdm_muxreg,
+ .nmuxregs = ARRAY_SIZE(tdm_muxreg),
+ },
+};
+
+static struct spear_pingroup tdm_pingroup = {
+ .name = "tdm_grp",
+ .pins = tdm_pins,
+ .npins = ARRAY_SIZE(tdm_pins),
+ .modemuxs = tdm_modemux,
+ .nmodemuxs = ARRAY_SIZE(tdm_modemux),
+};
+
+static const char *const tdm_grps[] = { "tdm_grp" };
+static struct spear_function tdm_function = {
+ .name = "tdm",
+ .groups = tdm_grps,
+ .ngroups = ARRAY_SIZE(tdm_grps),
+};
+
+/* pingroups */
+static struct spear_pingroup *spear310_pingroups[] = {
+ SPEAR3XX_COMMON_PINGROUPS,
+ &emi_cs_0_to_5_pingroup,
+ &uart1_pingroup,
+ &uart2_pingroup,
+ &uart3_pingroup,
+ &uart4_pingroup,
+ &uart5_pingroup,
+ &fsmc_pingroup,
+ &rs485_0_pingroup,
+ &rs485_1_pingroup,
+ &tdm_pingroup,
+};
+
+/* functions */
+static struct spear_function *spear310_functions[] = {
+ SPEAR3XX_COMMON_FUNCTIONS,
+ &emi_cs_0_to_5_function,
+ &uart1_function,
+ &uart2_function,
+ &uart3_function,
+ &uart4_function,
+ &uart5_function,
+ &fsmc_function,
+ &rs485_0_function,
+ &rs485_1_function,
+ &tdm_function,
+};
+
+static struct of_device_id spear310_pinctrl_of_match[] __devinitdata = {
+ {
+ .compatible = "st,spear310-pinmux",
+ },
+ {},
+};
+
+static int __devinit spear310_pinctrl_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ spear3xx_machdata.groups = spear310_pingroups;
+ spear3xx_machdata.ngroups = ARRAY_SIZE(spear310_pingroups);
+ spear3xx_machdata.functions = spear310_functions;
+ spear3xx_machdata.nfunctions = ARRAY_SIZE(spear310_functions);
+
+ pmx_init_addr(&spear3xx_machdata, PMX_CONFIG_REG);
+
+ spear3xx_machdata.modes_supported = false;
+
+ ret = spear_pinctrl_probe(pdev, &spear3xx_machdata);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int __devexit spear310_pinctrl_remove(struct platform_device *pdev)
+{
+ return spear_pinctrl_remove(pdev);
+}
+
+static struct platform_driver spear310_pinctrl_driver = {
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = spear310_pinctrl_of_match,
+ },
+ .probe = spear310_pinctrl_probe,
+ .remove = __devexit_p(spear310_pinctrl_remove),
+};
+
+static int __init spear310_pinctrl_init(void)
+{
+ return platform_driver_register(&spear310_pinctrl_driver);
+}
+arch_initcall(spear310_pinctrl_init);
+
+static void __exit spear310_pinctrl_exit(void)
+{
+ platform_driver_unregister(&spear310_pinctrl_driver);
+}
+module_exit(spear310_pinctrl_exit);
+
+MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_DESCRIPTION("ST Microelectronics SPEAr310 pinctrl driver");
+MODULE_LICENSE("GPL v2");
+MODULE_DEVICE_TABLE(of, SPEAr310_pinctrl_of_match);