mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 10:08:59 +00:00
02629d8f87
Targets were build tested and patches are refreshed. Signed-off-by: Luka Perkov <luka@openwrt.org> SVN-Revision: 42463
145 lines
4.2 KiB
Diff
145 lines
4.2 KiB
Diff
From 025909cbf933cc20c2ff5ea9f87de8e17a739a08 Mon Sep 17 00:00:00 2001
|
|
From: Andy Gross <agross@codeaurora.org>
|
|
Date: Thu, 24 Apr 2014 11:31:22 -0500
|
|
Subject: [PATCH 087/182] tty: serial: msm: Remove direct access to GSBI
|
|
|
|
This patch removes direct access of the GSBI registers. GSBI configuration
|
|
should be done through the GSBI driver directly.
|
|
|
|
Signed-off-by: Andy Gross <agross@codeaurora.org>
|
|
Signed-off-by: Kumar Gala <galak@codeaurora.org>
|
|
---
|
|
drivers/tty/serial/msm_serial.c | 48 ++-------------------------------------
|
|
drivers/tty/serial/msm_serial.h | 5 ----
|
|
2 files changed, 2 insertions(+), 51 deletions(-)
|
|
|
|
--- a/drivers/tty/serial/msm_serial.c
|
|
+++ b/drivers/tty/serial/msm_serial.c
|
|
@@ -52,7 +52,6 @@ struct msm_port {
|
|
struct clk *clk;
|
|
struct clk *pclk;
|
|
unsigned int imr;
|
|
- void __iomem *gsbi_base;
|
|
int is_uartdm;
|
|
unsigned int old_snap_state;
|
|
};
|
|
@@ -599,9 +598,7 @@ static const char *msm_type(struct uart_
|
|
static void msm_release_port(struct uart_port *port)
|
|
{
|
|
struct platform_device *pdev = to_platform_device(port->dev);
|
|
- struct msm_port *msm_port = UART_TO_MSM(port);
|
|
struct resource *uart_resource;
|
|
- struct resource *gsbi_resource;
|
|
resource_size_t size;
|
|
|
|
uart_resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
@@ -612,28 +609,12 @@ static void msm_release_port(struct uart
|
|
release_mem_region(port->mapbase, size);
|
|
iounmap(port->membase);
|
|
port->membase = NULL;
|
|
-
|
|
- if (msm_port->gsbi_base) {
|
|
- writel_relaxed(GSBI_PROTOCOL_IDLE,
|
|
- msm_port->gsbi_base + GSBI_CONTROL);
|
|
-
|
|
- gsbi_resource = platform_get_resource(pdev, IORESOURCE_MEM, 1);
|
|
- if (unlikely(!gsbi_resource))
|
|
- return;
|
|
-
|
|
- size = resource_size(gsbi_resource);
|
|
- release_mem_region(gsbi_resource->start, size);
|
|
- iounmap(msm_port->gsbi_base);
|
|
- msm_port->gsbi_base = NULL;
|
|
- }
|
|
}
|
|
|
|
static int msm_request_port(struct uart_port *port)
|
|
{
|
|
- struct msm_port *msm_port = UART_TO_MSM(port);
|
|
struct platform_device *pdev = to_platform_device(port->dev);
|
|
struct resource *uart_resource;
|
|
- struct resource *gsbi_resource;
|
|
resource_size_t size;
|
|
int ret;
|
|
|
|
@@ -652,30 +633,8 @@ static int msm_request_port(struct uart_
|
|
goto fail_release_port;
|
|
}
|
|
|
|
- gsbi_resource = platform_get_resource(pdev, IORESOURCE_MEM, 1);
|
|
- /* Is this a GSBI-based port? */
|
|
- if (gsbi_resource) {
|
|
- size = resource_size(gsbi_resource);
|
|
-
|
|
- if (!request_mem_region(gsbi_resource->start, size,
|
|
- "msm_serial")) {
|
|
- ret = -EBUSY;
|
|
- goto fail_release_port_membase;
|
|
- }
|
|
-
|
|
- msm_port->gsbi_base = ioremap(gsbi_resource->start, size);
|
|
- if (!msm_port->gsbi_base) {
|
|
- ret = -EBUSY;
|
|
- goto fail_release_gsbi;
|
|
- }
|
|
- }
|
|
-
|
|
return 0;
|
|
|
|
-fail_release_gsbi:
|
|
- release_mem_region(gsbi_resource->start, size);
|
|
-fail_release_port_membase:
|
|
- iounmap(port->membase);
|
|
fail_release_port:
|
|
release_mem_region(port->mapbase, size);
|
|
return ret;
|
|
@@ -683,7 +642,6 @@ fail_release_port:
|
|
|
|
static void msm_config_port(struct uart_port *port, int flags)
|
|
{
|
|
- struct msm_port *msm_port = UART_TO_MSM(port);
|
|
int ret;
|
|
if (flags & UART_CONFIG_TYPE) {
|
|
port->type = PORT_MSM;
|
|
@@ -691,9 +649,6 @@ static void msm_config_port(struct uart_
|
|
if (ret)
|
|
return;
|
|
}
|
|
- if (msm_port->gsbi_base)
|
|
- writel_relaxed(GSBI_PROTOCOL_UART,
|
|
- msm_port->gsbi_base + GSBI_CONTROL);
|
|
}
|
|
|
|
static int msm_verify_port(struct uart_port *port, struct serial_struct *ser)
|
|
@@ -1110,6 +1065,7 @@ static struct of_device_id msm_match_tab
|
|
|
|
static struct platform_driver msm_platform_driver = {
|
|
.remove = msm_serial_remove,
|
|
+ .probe = msm_serial_probe,
|
|
.driver = {
|
|
.name = "msm_serial",
|
|
.owner = THIS_MODULE,
|
|
@@ -1125,7 +1081,7 @@ static int __init msm_serial_init(void)
|
|
if (unlikely(ret))
|
|
return ret;
|
|
|
|
- ret = platform_driver_probe(&msm_platform_driver, msm_serial_probe);
|
|
+ ret = platform_driver_register(&msm_platform_driver);
|
|
if (unlikely(ret))
|
|
uart_unregister_driver(&msm_uart_driver);
|
|
|
|
--- a/drivers/tty/serial/msm_serial.h
|
|
+++ b/drivers/tty/serial/msm_serial.h
|
|
@@ -109,11 +109,6 @@
|
|
#define UART_ISR 0x0014
|
|
#define UART_ISR_TX_READY (1 << 7)
|
|
|
|
-#define GSBI_CONTROL 0x0
|
|
-#define GSBI_PROTOCOL_CODE 0x30
|
|
-#define GSBI_PROTOCOL_UART 0x40
|
|
-#define GSBI_PROTOCOL_IDLE 0x0
|
|
-
|
|
#define UARTDM_RXFS 0x50
|
|
#define UARTDM_RXFS_BUF_SHIFT 0x7
|
|
#define UARTDM_RXFS_BUF_MASK 0x7
|