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msm_serial_hs_lite: Enable clock when configuring the GSBI

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Enable the bus clock when configuring the GSBI registers
for UART mode in the msm_serial_hs_lite driver.

CRs-Fixed: 292755
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
This commit is contained in:
Stepan Moskovchenko
2011-07-11 17:06:38 -07:00
committed by Bryan Huntsman
parent 8d1f8724f0
commit 131d2e7746
1 changed files with 6 additions and 1 deletions
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7
drivers/tty/serial/msm_serial_hs_lite.c
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@@ -795,11 +795,16 @@ static void msm_hsl_config_port(struct uart_port *port, int flags)
if (msm_hsl_request_port(port)) if (msm_hsl_request_port(port))
return; return;
} }
if (msm_serial_hsl_has_gsbi(port)) if (msm_serial_hsl_has_gsbi(port)) {
if (msm_hsl_port->pclk)
clk_enable(msm_hsl_port->pclk);
if ((ioread32(msm_hsl_port->mapped_gsbi + GSBI_CONTROL_ADDR) & if ((ioread32(msm_hsl_port->mapped_gsbi + GSBI_CONTROL_ADDR) &
GSBI_PROTOCOL_I2C_UART) != GSBI_PROTOCOL_I2C_UART) GSBI_PROTOCOL_I2C_UART) != GSBI_PROTOCOL_I2C_UART)
iowrite32(GSBI_PROTOCOL_I2C_UART, iowrite32(GSBI_PROTOCOL_I2C_UART,
msm_hsl_port->mapped_gsbi + GSBI_CONTROL_ADDR); msm_hsl_port->mapped_gsbi + GSBI_CONTROL_ADDR);
if (msm_hsl_port->pclk)
clk_disable(msm_hsl_port->pclk);
}
} }
static int msm_hsl_verify_port(struct uart_port *port, static int msm_hsl_verify_port(struct uart_port *port,