lkml.org 
[lkml]   [2015]   [Apr]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v3 2/3] tty: serial: msm: Remove duplicate operations on clocks in startup/shutdown
On 04/10/15 05:19, Pramod Gurav wrote:
> @@ -683,8 +679,7 @@ static void msm_power(struct uart_port *port, unsigned int state,
>
> switch (state) {
> case 0:
> - clk_prepare_enable(msm_port->clk);
> - clk_prepare_enable(msm_port->pclk);
> + msm_init_clock(port);

Hm... now we would call msm_serial_set_mnd_regs() whenever we power on
the port? Presumably we only need to do that once when we probe (or when
we resume from a sleep state that resets the registers, i.e.
hibernation) but I guess we're getting saved by the fact that the
if/else if pair in msm_serial_set_mnd_regs_from_uartclk would never be
true after the first time we call it?

> break;
> case 3:
> clk_disable_unprepare(msm_port->clk);


--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project



\
 
 \ /
  Last update: 2015-04-10 20:41    [W:0.240 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site