From: Sylwester Nawrocki <s.nawrocki@samsung.com>
Date: Fri, 6 Apr 2018 10:02:31 +0000 (+0200)
Subject: fimc-is: Remove unused SPI driver code
X-Git-Tag: submit/tizen/20190329.020226~243
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=abfe0aba825ea1e421dfc871a2f5b274e4436bcb;p=platform%2Fkernel%2Flinux-exynos.git

fimc-is: Remove unused SPI driver code

This patch removes empty/unused SPI related functions and unneeded
devinit/devexit attribute definitions.

Change-Id: I98055d7947c15d0c6692d8714469f48ed9aeffb0
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---

diff --git a/drivers/media/platform/exynos/fimc-is/fimc-is-core.h b/drivers/media/platform/exynos/fimc-is/fimc-is-core.h
index 85fe5308ccf6..da6a8eec8a27 100644
--- a/drivers/media/platform/exynos/fimc-is/fimc-is-core.h
+++ b/drivers/media/platform/exynos/fimc-is/fimc-is-core.h
@@ -298,8 +298,6 @@ int fimc_is_init_set(struct fimc_is_core *dev , u32 val);
 int fimc_is_load_fw(struct fimc_is_core *dev);
 int fimc_is_load_setfile(struct fimc_is_core *dev);
 int fimc_is_otf_close(struct fimc_is_device_ischain *ischain);
-int fimc_is_spi_reset(void *buf, u32 rx_addr, size_t size);
-int fimc_is_spi_read(void *buf, u32 rx_addr, size_t size);
 int fimc_is_runtime_suspend(struct device *dev);
 int fimc_is_runtime_resume(struct device *dev);
 
diff --git a/drivers/media/platform/exynos/fimc-is/fimc-is-spi.c b/drivers/media/platform/exynos/fimc-is/fimc-is-spi.c
index e5db569da8e8..1e201d05b60b 100644
--- a/drivers/media/platform/exynos/fimc-is/fimc-is-spi.c
+++ b/drivers/media/platform/exynos/fimc-is/fimc-is-spi.c
@@ -20,90 +20,6 @@
 #include "fimc-is-core.h"
 #include "fimc-is-regs.h"
 
-#define STREAM_TO_U16(var16, p)	{(var16) = ((u16)(*((u8 *)p+1)) + \
-				((u8)(*((u8 *)p) << 8))); }
-
-#ifndef __devinit
-#define __devinit
-#endif
-
-#ifndef __devexit
-#define __devexit
-#endif
-
-#ifndef __devexit_p
-#define __devexit_p(x) x
-#endif
-
-static struct spi_device *g_spi;
-
-int fimc_is_spi_reset(void *buf, u32 rx_addr, size_t size)
-{
-	unsigned char req_rst[1] = { 0x99 };
-	int ret;
-
-	struct spi_transfer t_c;
-	struct spi_transfer t_r;
-
-	struct spi_message m;
-
-	memset(&t_c, 0x00, sizeof(t_c));
-	memset(&t_r, 0x00, sizeof(t_r));
-
-	t_c.tx_buf = req_rst;
-	t_c.len = 1;
-	t_c.cs_change = 0;
-
-	spi_message_init(&m);
-	spi_message_add_tail(&t_c, &m);
-
-	ret = spi_sync(g_spi, &m);
-	if (ret) {
-		err("spi sync error - can't get device information");
-		return -EIO;
-	}
-
-	return 0;
-}
-
-int fimc_is_spi_read(void *buf, u32 rx_addr, size_t size)
-{
-	unsigned char req_data[4] = { 0x03,  };
-	int ret;
-
-	struct spi_transfer t_c;
-	struct spi_transfer t_r;
-
-	struct spi_message m;
-
-	memset(&t_c, 0x00, sizeof(t_c));
-	memset(&t_r, 0x00, sizeof(t_r));
-
-	req_data[1] = (rx_addr & 0xFF0000) >> 16;
-	req_data[2] = (rx_addr & 0xFF00) >> 8;
-	req_data[3] = (rx_addr & 0xFF);
-
-	t_c.tx_buf = req_data;
-	t_c.len = 4;
-	t_c.cs_change = 1;
-	t_c.bits_per_word = 32;
-
-	t_r.rx_buf = buf;
-	t_r.len = size;
-	t_r.cs_change = 0;
-	t_r.bits_per_word = 32;
-
-	spi_message_init(&m);
-	spi_message_add_tail(&t_c, &m);
-	spi_message_add_tail(&t_r, &m);
-
-	ret = spi_sync(g_spi, &m);
-	if (ret) {
-		err("spi sync error - can't read data");
-		return -EIO;
-	} else
-		return 0;
-}
 
 int fimc_is_spi_reset_by_core(struct spi_device *spi, void *buf, u32 rx_addr, size_t size)
 {
@@ -215,61 +131,3 @@ int fimc_is_spi_read_module_id(struct spi_device *spi, void *buf, u16 rx_addr, s
 	}
 }
 EXPORT_SYMBOL(fimc_is_spi_read_module_id);
-
-
-static int __devinit fimc_is_spi_probe(struct spi_device *spi)
-{
-	int ret = 0;
-
-	dbg_core("%s\n", __func__);
-
-	/* spi->bits_per_word = 16; */
-	if (spi_setup(spi)) {
-		pr_err("failed to setup spi for fimc_is_spi\n");
-		ret = -EINVAL;
-		goto exit;
-	}
-
-	g_spi = spi;
-
-exit:
-	return ret;
-}
-
-static int __devexit fimc_is_spi_remove(struct spi_device *spi)
-{
-	return 0;
-}
-
-static struct spi_driver fimc_is_spi_driver = {
-	.driver = {
-		.name = "fimc_is_spi",
-		.bus = &spi_bus_type,
-		.owner = THIS_MODULE,
-	},
-	.probe = fimc_is_spi_probe,
-	.remove = __devexit_p(fimc_is_spi_remove),
-};
-
-static int __init fimc_is_spi_init(void)
-{
-	int ret;
-
-	ret = spi_register_driver(&fimc_is_spi_driver);
-
-	if (ret)
-		pr_err("failed to register imc_is_spi- %x\n", ret);
-
-	return ret;
-}
-
-static void __exit fimc_is_spi_exit(void)
-{
-	spi_unregister_driver(&fimc_is_spi_driver);
-}
-
-module_init(fimc_is_spi_init);
-module_exit(fimc_is_spi_exit);
-
-MODULE_DESCRIPTION("FIMC-IS SPI driver");
-MODULE_LICENSE("GPL");