diff options
author | Shawn Guo <shawn.guo@linaro.org> | 2012-03-16 16:56:38 +0800 |
---|---|---|
committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-01 11:28:26 +0100 |
commit | a23dc694828e3de96bf18e20459ba885ba91cb29 (patch) | |
tree | 26863bf2c6bdac975a369a20fcf6f47176c5cd55 /sound/soc/imx/imx-audmux.c | |
parent | d61e11260016f3589d60f94286c89ef823a26605 (diff) |
ASoC: imx: merge sound/soc/imx into sound/soc/fsl
Freescale PowerPC and ARM/IMX families share the same SSI IP block.
The patch merges sound/soc/imx into sound/soc/fsl, so that the possible
code sharing and consolidation can happen.
This is a plain merge, except that menuconfig SND_POWERPC_SOC is added
in Kconfig for PowerPC platform as a correspondence to SND_IMX_SOC for
IMX platform.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/imx/imx-audmux.c')
-rw-r--r-- | sound/soc/imx/imx-audmux.c | 314 |
1 files changed, 0 insertions, 314 deletions
diff --git a/sound/soc/imx/imx-audmux.c b/sound/soc/imx/imx-audmux.c deleted file mode 100644 index 601df809a26a..000000000000 --- a/sound/soc/imx/imx-audmux.c +++ /dev/null @@ -1,314 +0,0 @@ -/* - * 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 - * Phytec Messtechnik GmbH, http://www.phytec.de - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/clk.h> -#include <linux/debugfs.h> -#include <linux/err.h> -#include <linux/io.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include <linux/platform_device.h> -#include <linux/slab.h> - -#include "imx-audmux.h" - -#define DRIVER_NAME "imx-audmux" - -static struct clk *audmux_clk; -static void __iomem *audmux_base; - -#define IMX_AUDMUX_V2_PTCR(x) ((x) * 8) -#define IMX_AUDMUX_V2_PDCR(x) ((x) * 8 + 4) - -#ifdef CONFIG_DEBUG_FS -static struct dentry *audmux_debugfs_root; - -static int audmux_open_file(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - -/* There is an annoying discontinuity in the SSI numbering with regard - * to the Linux number of the devices */ -static const char *audmux_port_string(int port) -{ - switch (port) { - case MX31_AUDMUX_PORT1_SSI0: - return "imx-ssi.0"; - case MX31_AUDMUX_PORT2_SSI1: - return "imx-ssi.1"; - case MX31_AUDMUX_PORT3_SSI_PINS_3: - return "SSI3"; - case MX31_AUDMUX_PORT4_SSI_PINS_4: - return "SSI4"; - case MX31_AUDMUX_PORT5_SSI_PINS_5: - return "SSI5"; - case MX31_AUDMUX_PORT6_SSI_PINS_6: - return "SSI6"; - default: - return "UNKNOWN"; - } -} - -static ssize_t audmux_read_file(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - ssize_t ret; - char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); - int port = (int)file->private_data; - u32 pdcr, ptcr; - - if (!buf) - return -ENOMEM; - - if (audmux_clk) - clk_prepare_enable(audmux_clk); - - ptcr = readl(audmux_base + IMX_AUDMUX_V2_PTCR(port)); - pdcr = readl(audmux_base + IMX_AUDMUX_V2_PDCR(port)); - - if (audmux_clk) - clk_disable_unprepare(audmux_clk); - - ret = snprintf(buf, PAGE_SIZE, "PDCR: %08x\nPTCR: %08x\n", - pdcr, ptcr); - - if (ptcr & IMX_AUDMUX_V2_PTCR_TFSDIR) - ret += snprintf(buf + ret, PAGE_SIZE - ret, - "TxFS output from %s, ", - audmux_port_string((ptcr >> 27) & 0x7)); - else - ret += snprintf(buf + ret, PAGE_SIZE - ret, - "TxFS input, "); - - if (ptcr & IMX_AUDMUX_V2_PTCR_TCLKDIR) - ret += snprintf(buf + ret, PAGE_SIZE - ret, - "TxClk output from %s", - audmux_port_string((ptcr >> 22) & 0x7)); - else - ret += snprintf(buf + ret, PAGE_SIZE - ret, - "TxClk input"); - - ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); - - if (ptcr & IMX_AUDMUX_V2_PTCR_SYN) { - ret += snprintf(buf + ret, PAGE_SIZE - ret, - "Port is symmetric"); - } else { - if (ptcr & IMX_AUDMUX_V2_PTCR_RFSDIR) - ret += snprintf(buf + ret, PAGE_SIZE - ret, - "RxFS output from %s, ", - audmux_port_string((ptcr >> 17) & 0x7)); - else - ret += snprintf(buf + ret, PAGE_SIZE - ret, - "RxFS input, "); - - if (ptcr & IMX_AUDMUX_V2_PTCR_RCLKDIR) - ret += snprintf(buf + ret, PAGE_SIZE - ret, - "RxClk output from %s", - audmux_port_string((ptcr >> 12) & 0x7)); - else - ret += snprintf(buf + ret, PAGE_SIZE - ret, - "RxClk input"); - } - - ret += snprintf(buf + ret, PAGE_SIZE - ret, - "\nData received from %s\n", - audmux_port_string((pdcr >> 13) & 0x7)); - - ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); - - kfree(buf); - - return ret; -} - -static const struct file_operations audmux_debugfs_fops = { - .open = audmux_open_file, - .read = audmux_read_file, - .llseek = default_llseek, -}; - -static void __init audmux_debugfs_init(void) -{ - int i; - char buf[20]; - - audmux_debugfs_root = debugfs_create_dir("audmux", NULL); - if (!audmux_debugfs_root) { - pr_warning("Failed to create AUDMUX debugfs root\n"); - return; - } - - for (i = 1; i < 8; i++) { - snprintf(buf, sizeof(buf), "ssi%d", i); - if (!debugfs_create_file(buf, 0444, audmux_debugfs_root, - (void *)i, &audmux_debugfs_fops)) - pr_warning("Failed to create AUDMUX port %d debugfs file\n", - i); - } -} - -static void __devexit 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 struct of_device_id imx_audmux_dt_ids[] = { - { .compatible = "fsl,imx21-audmux", .data = &imx_audmux_ids[0], }, - { .compatible = "fsl,imx31-audmux", .data = &imx_audmux_ids[1], }, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, imx_audmux_dt_ids); - -static const uint8_t port_mapping[] = { - 0x0, 0x4, 0x8, 0x10, 0x14, 0x1c, -}; - -int imx_audmux_v1_configure_port(unsigned int port, unsigned int pcr) -{ - if (audmux_type != IMX21_AUDMUX) - return -EINVAL; - - if (!audmux_base) - return -ENOSYS; - - if (port >= ARRAY_SIZE(port_mapping)) - return -EINVAL; - - writel(pcr, audmux_base + port_mapping[port]); - - return 0; -} -EXPORT_SYMBOL_GPL(imx_audmux_v1_configure_port); - -int imx_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; - - if (audmux_clk) - clk_prepare_enable(audmux_clk); - - writel(ptcr, audmux_base + IMX_AUDMUX_V2_PTCR(port)); - writel(pdcr, audmux_base + IMX_AUDMUX_V2_PDCR(port)); - - if (audmux_clk) - clk_disable_unprepare(audmux_clk); - - return 0; -} -EXPORT_SYMBOL_GPL(imx_audmux_v2_configure_port); - -static int __devinit imx_audmux_probe(struct platform_device *pdev) -{ - struct resource *res; - const struct of_device_id *of_id = - of_match_device(imx_audmux_dt_ids, &pdev->dev); - - 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 (of_id) - pdev->id_entry = of_id->data; - audmux_type = pdev->id_entry->driver_data; - if (audmux_type == IMX31_AUDMUX) - audmux_debugfs_init(); - - return 0; -} - -static int __devexit 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 = __devexit_p(imx_audmux_remove), - .id_table = imx_audmux_ids, - .driver = { - .name = DRIVER_NAME, - .owner = THIS_MODULE, - .of_match_table = imx_audmux_dt_ids, - } -}; - -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); |