Thread (36 messages) 36 messages, 4 authors, 2018-09-18
STALE2827d
Revisions (7)
  1. v5 [diff vs current]
  2. v5 [diff vs current]
  3. v5 current
  4. v5 [diff vs current]
  5. v5 [diff vs current]
  6. v5 [diff vs current]
  7. v7 [diff vs current]

[PATCH V5 0/5] soc: imx: add scu firmware api support

From: s.hauer@pengutronix.de (Sascha Hauer)
Date: 2018-08-28 06:21:13

On Mon, Aug 27, 2018 at 10:21:37AM +0000, A.s. Dong wrote:
quoted
From: A.s. Dong
quoted
From: Sascha Hauer [mailto:s.hauer at pengutronix.de]
On Fri, Aug 24, 2018 at 07:36:38AM +0000, A.s. Dong wrote:
quoted
Hi Jassi & Sasha,

Do you have some suggestions about this patch series?
I still think that the users like clk and pinctrl should directly call
sc_call_rpc(), no need for this shim at all.
Sorry, I'm a bit confuse.
What specific shim do you mean not needed?

Do you mean we don't need all the SCU SVC APIs (clk/pm/pinctrl/misc and etc)
Implemented in this patch series and instead directly implement them in client
driver?
For example:
drivers/soc/imx/sc/svc/pm/rpc_clnt.c
sc_err_t sc_pm_get_clock_rate(sc_ipc_t ipc, sc_rsrc_t resource,
                              sc_pm_clk_t clk, sc_pm_clock_rate_t *rate)
Change to:
drivers/clk/imx/scu/scu_clock.c ?
sc_err_t sc_pm_get_clock_rate(sc_ipc_t ipc, sc_rsrc_t resource,
                              sc_pm_clk_t clk, sc_pm_clock_rate_t *rate)
I thought even make client driver to directly to sc_call_rpc(), it may still better to
Make them into a serrate function call like sc_pm_get_clock_rate() but just put
In client driver instead of in the central SCU SVC place.
Not sure the point to do that.
Would you please help clarify a bit more?
I think translating the sc message setup into a function only adds
additional overhead that the reader has to follow. I do not see the
point for doing this.

Also when we do the message sending directly in the clients we do not
end up with a huge bag of all possible message sending function of which
only a fraction is ever going to be used.

Sascha

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