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