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Commit 560ff5ef authored by Mao Li's avatar Mao Li Committed by Sudhakar Manapati
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input: msg21xx_ts: Mstar touch driver optimization 



Mstar driver uses the ic-type DT property for dynamic detection
support. Driver reads a register from the controller and compares
both the values to check if connected touch controller is of
Mstar or not.
Remove all DBG messages and convert them to dev_dbg/info.
Add a debugfs entry for suspend/resume.
Remove ts_data/pdata global declaration and use dev_get_drvdata()
and input_set_drvdata()/dev_set_drvdata() instead.

  This patch is propagated from 3.10 kernel
    commit: adbc104e3cb863a06a710f2e889750d80b63ab78

Change-Id: Ia053745d48faf68b946fbb0cf16d392cbfdd2a3c
Signed-off-by: default avatarMao Li <maol@codeaurora.org>
Signed-off-by: default avatarSudhakar Manapati <smanap@codeaurora.org>
parent b090c340

Documentation/devicetree/bindings/input/touchscreen/msg21xx-ts.txt

+12 −1
Original line number Diff line number Diff line
@@ -32,6 +32,9 @@ Required properties: 
			config defined in pin groups of interrupt and reset gpio.

			"pmx_ts_release" : Release configuration of pins, this should specify

			release config defined in pin groups of interrupt and reset gpio.

 - mstar,num-max-touches: It defines the maximum number of touch supported by the controller.

 - mstar,hard-reset-delay-ms : hard reset delay in ms

 - mstar,post-hard-reset-delay-ms : post hard reset delay in ms



Optional properties:
@@ -39,6 +42,10 @@ Optional properties: 
 - mstar,panel-coords : panel coords for the chip in pixels.

				It is a four tuple consisting of min x,

				min y, max x and max y values

 - mstar,ic-type : It defines the ic-type of the controller. Values are as folows:

			1 -> msg2133.

			2 -> msg21xxA.

			3 -> msg26xxM.



Example:

	i2c@78b9000 { /* BLSP1 QUP5 */
@@ -56,5 +63,9 @@ Example: 
			pinctrl-0 = <&ts_int_active &ts_reset_active>;

			pinctrl-1 = <&ts_int_suspend &ts_reset_suspend>;

			mstar,button-map = <172 139 158>;

			mstar,ic-type = <2>;

			mstar,num_max_touches = <2>;

			mstar,hard-reset-delay-ms = <100>;

			mstar,post-hard-reset-delay-ms = <100>;

		};

	};

drivers/input/touchscreen/msg21xx_ts.c

+805 −679

File changed.

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