mxc_init_irq(MX21_IO_ADDRESS(MX21_AVIC_BASE_ADDR));
}
+static const struct resource imx21_audmux_res[] __initconst = {
+ DEFINE_RES_MEM(MX21_AUDMUX_BASE_ADDR, SZ_4K),
+};
+
void __init imx21_soc_init(void)
{
mxc_register_gpio("imx21-gpio", 0, MX21_GPIO1_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
mxc_register_gpio("imx21-gpio", 5, MX21_GPIO6_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
imx_add_imx_dma();
+ platform_device_register_simple("imx21-audmux", 0, imx21_audmux_res,
+ ARRAY_SIZE(imx21_audmux_res));
}
.script_addrs = &imx25_sdma_script,
};
+static const struct resource imx25_audmux_res[] __initconst = {
+ DEFINE_RES_MEM(MX25_AUDMUX_BASE_ADDR, SZ_16K),
+};
+
void __init imx25_soc_init(void)
{
/* i.mx25 has the i.mx31 type gpio */
/* i.mx25 has the i.mx35 type sdma */
imx_add_imx_sdma("imx35-sdma", MX25_SDMA_BASE_ADDR, MX25_INT_SDMA, &imx25_sdma_pdata);
+ /* i.mx25 has the i.mx31 type audmux */
+ platform_device_register_simple("imx31-audmux", 0, imx25_audmux_res,
+ ARRAY_SIZE(imx25_audmux_res));
}
mxc_init_irq(MX27_IO_ADDRESS(MX27_AVIC_BASE_ADDR));
}
+static const struct resource imx27_audmux_res[] __initconst = {
+ DEFINE_RES_MEM(MX27_AUDMUX_BASE_ADDR, SZ_4K),
+};
+
void __init imx27_soc_init(void)
{
/* i.mx27 has the i.mx21 type gpio */
mxc_register_gpio("imx21-gpio", 5, MX27_GPIO6_BASE_ADDR, SZ_256, MX27_INT_GPIO, 0);
imx_add_imx_dma();
+ /* imx27 has the imx21 type audmux */
+ platform_device_register_simple("imx21-audmux", 0, imx27_audmux_res,
+ ARRAY_SIZE(imx27_audmux_res));
}
.script_addrs = &imx31_to2_sdma_script,
};
+static const struct resource imx31_audmux_res[] __initconst = {
+ DEFINE_RES_MEM(MX31_AUDMUX_BASE_ADDR, SZ_16K),
+};
+
void __init imx31_soc_init(void)
{
int to_version = mx31_revision() >> 4;
}
imx_add_imx_sdma("imx31-sdma", MX31_SDMA_BASE_ADDR, MX31_INT_SDMA, &imx31_sdma_pdata);
+ platform_device_register_simple("imx31-audmux", 0, imx31_audmux_res,
+ ARRAY_SIZE(imx31_audmux_res));
}
#endif /* ifdef CONFIG_SOC_IMX31 */
.script_addrs = &imx35_to2_sdma_script,
};
+static const struct resource imx35_audmux_res[] __initconst = {
+ DEFINE_RES_MEM(MX35_AUDMUX_BASE_ADDR, SZ_16K),
+};
+
void __init imx35_soc_init(void)
{
int to_version = mx35_revision() >> 4;
}
imx_add_imx_sdma("imx35-sdma", MX35_SDMA_BASE_ADDR, MX35_INT_SDMA, &imx35_sdma_pdata);
+ /* i.mx35 has the i.mx31 type audmux */
+ platform_device_register_simple("imx31-audmux", 0, imx35_audmux_res,
+ ARRAY_SIZE(imx35_audmux_res));
}
#endif /* ifdef CONFIG_SOC_IMX35 */
.script_addrs = &imx53_sdma_script,
};
+static const struct resource imx50_audmux_res[] __initconst = {
+ DEFINE_RES_MEM(MX50_AUDMUX_BASE_ADDR, SZ_16K),
+};
+
+static const struct resource imx51_audmux_res[] __initconst = {
+ DEFINE_RES_MEM(MX51_AUDMUX_BASE_ADDR, SZ_16K),
+};
+
+static const struct resource imx53_audmux_res[] __initconst = {
+ DEFINE_RES_MEM(MX53_AUDMUX_BASE_ADDR, SZ_16K),
+};
+
void __init imx50_soc_init(void)
{
/* i.mx50 has the i.mx31 type gpio */
mxc_register_gpio("imx31-gpio", 3, MX50_GPIO4_BASE_ADDR, SZ_16K, MX50_INT_GPIO4_LOW, MX50_INT_GPIO4_HIGH);
mxc_register_gpio("imx31-gpio", 4, MX50_GPIO5_BASE_ADDR, SZ_16K, MX50_INT_GPIO5_LOW, MX50_INT_GPIO5_HIGH);
mxc_register_gpio("imx31-gpio", 5, MX50_GPIO6_BASE_ADDR, SZ_16K, MX50_INT_GPIO6_LOW, MX50_INT_GPIO6_HIGH);
+
+ /* i.mx50 has the i.mx31 type audmux */
+ platform_device_register_simple("imx31-audmux", 0, imx50_audmux_res,
+ ARRAY_SIZE(imx50_audmux_res));
}
void __init imx51_soc_init(void)
/* i.mx51 has the i.mx35 type sdma */
imx_add_imx_sdma("imx35-sdma", MX51_SDMA_BASE_ADDR, MX51_INT_SDMA, &imx51_sdma_pdata);
+ /* i.mx51 has the i.mx31 type audmux */
+ platform_device_register_simple("imx31-audmux", 0, imx51_audmux_res,
+ ARRAY_SIZE(imx51_audmux_res));
}
void __init imx53_soc_init(void)
/* i.mx53 has the i.mx35 type sdma */
imx_add_imx_sdma("imx35-sdma", MX53_SDMA_BASE_ADDR, MX53_INT_SDMA, &imx53_sdma_pdata);
+ /* i.mx53 has the i.mx31 type audmux */
+ platform_device_register_simple("imx31-audmux", 0, imx53_audmux_res,
+ ARRAY_SIZE(imx53_audmux_res));
}
/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2012 Linaro Ltd.
* Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
*
* Initial development of this code was funded by
* GNU General Public License for more details.
*/
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/io.h>
#include <linux/clk.h>
#include <linux/debugfs.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
#include <linux/slab.h>
#include <mach/audmux.h>
-#include <mach/hardware.h>
+
+#define DRIVER_NAME "imx-audmux"
static struct clk *audmux_clk;
static void __iomem *audmux_base;
.llseek = default_llseek,
};
-static void audmux_debugfs_init(void)
+static void __init audmux_debugfs_init(void)
{
int i;
char buf[20];
i);
}
}
+
+static void __exit audmux_debugfs_remove(void)
+{
+ debugfs_remove_recursive(audmux_debugfs_root);
+}
#else
static inline void audmux_debugfs_init(void)
{
}
+
+static inline void audmux_debugfs_remove(void)
+{
+}
#endif
+enum imx_audmux_type {
+ IMX21_AUDMUX,
+ IMX31_AUDMUX,
+} audmux_type;
+
+static struct platform_device_id imx_audmux_ids[] = {
+ {
+ .name = "imx21-audmux",
+ .driver_data = IMX21_AUDMUX,
+ }, {
+ .name = "imx31-audmux",
+ .driver_data = IMX31_AUDMUX,
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(platform, imx_audmux_ids);
+
static const uint8_t port_mapping[] = {
0x0, 0x4, 0x8, 0x10, 0x14, 0x1c,
};
int mxc_audmux_v1_configure_port(unsigned int port, unsigned int pcr)
{
+ if (audmux_type != IMX21_AUDMUX)
+ return -EINVAL;
+
if (!audmux_base)
return -ENOSYS;
int mxc_audmux_v2_configure_port(unsigned int port, unsigned int ptcr,
unsigned int pdcr)
{
+ if (audmux_type != IMX31_AUDMUX)
+ return -EINVAL;
+
if (!audmux_base)
return -ENOSYS;
}
EXPORT_SYMBOL_GPL(mxc_audmux_v2_configure_port);
-static int mxc_audmux_init(void)
+static int __init imx_audmux_probe(struct platform_device *pdev)
{
- int ret;
- if (cpu_is_mx51()) {
- audmux_base = MX51_IO_ADDRESS(MX51_AUDMUX_BASE_ADDR);
- } else if (cpu_is_mx31()) {
- audmux_base = MX31_IO_ADDRESS(MX31_AUDMUX_BASE_ADDR);
- } else if (cpu_is_mx35()) {
- audmux_clk = clk_get(NULL, "audmux");
- if (IS_ERR(audmux_clk)) {
- ret = PTR_ERR(audmux_clk);
- printk(KERN_ERR "%s: cannot get clock: %d\n", __func__,
- ret);
- return ret;
- }
- audmux_base = MX35_IO_ADDRESS(MX35_AUDMUX_BASE_ADDR);
- } else if (cpu_is_mx25()) {
- audmux_clk = clk_get(NULL, "audmux");
- if (IS_ERR(audmux_clk)) {
- ret = PTR_ERR(audmux_clk);
- printk(KERN_ERR "%s: cannot get clock: %d\n", __func__,
- ret);
- return ret;
- }
- audmux_base = MX25_IO_ADDRESS(MX25_AUDMUX_BASE_ADDR);
- } else if (cpu_is_mx27()) {
- audmux_base = MX27_IO_ADDRESS(MX27_AUDMUX_BASE_ADDR);
- } else if (cpu_is_mx21()) {
- audmux_base = MX21_IO_ADDRESS(MX21_AUDMUX_BASE_ADDR);
+ struct resource *res;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ audmux_base = devm_request_and_ioremap(&pdev->dev, res);
+ if (!audmux_base)
+ return -EADDRNOTAVAIL;
+
+ audmux_clk = clk_get(&pdev->dev, "audmux");
+ if (IS_ERR(audmux_clk)) {
+ dev_dbg(&pdev->dev, "cannot get clock: %ld\n",
+ PTR_ERR(audmux_clk));
+ audmux_clk = NULL;
}
- if (!cpu_is_mx2())
+ audmux_type = pdev->id_entry->driver_data;
+ if (audmux_type == IMX31_AUDMUX)
audmux_debugfs_init();
return 0;
}
-postcore_initcall(mxc_audmux_init);
+static int __exit imx_audmux_remove(struct platform_device *pdev)
+{
+ if (audmux_type == IMX31_AUDMUX)
+ audmux_debugfs_remove();
+ clk_put(audmux_clk);
+
+ return 0;
+}
+
+static struct platform_driver imx_audmux_driver = {
+ .probe = imx_audmux_probe,
+ .remove = __exit_p(imx_audmux_remove),
+ .id_table = imx_audmux_ids,
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ }
+};
+
+static int __init imx_audmux_init(void)
+{
+ return platform_driver_register(&imx_audmux_driver);
+}
+subsys_initcall(imx_audmux_init);
+
+static void __exit imx_audmux_exit(void)
+{
+ platform_driver_unregister(&imx_audmux_driver);
+}
+module_exit(imx_audmux_exit);
+
+MODULE_DESCRIPTION("Freescale i.MX AUDMUX driver");
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRIVER_NAME);