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Commit 9ed44bb2 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven
Browse files

serial: sh-sci: Correct SCIF type on R-Car for BRG 



The "renesas,scif" compatible value is currently used for the SCIF
variant in all Renesas SoCs of the R-Car family.  However, the variant
used in the R-Car family is not the common "SH-4(A)" variant, but a
derivative with added "Baud Rate Generator for External Clock" (BRG),
which is also present in sh7734.

Use the family-specific SCIF compatible values for R-Car Gen1, Gen2, and
Gen3 SoCs to differentiate.  The "renesas,scif" compatible value can
still be used as a common denominator for SCIF variants with the
"SH-4(A)" register layout (i.e. ignoring the "Serial Extension Mode
Register" (SCEMR) and the new BRG-specific registers).

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f443ff80

drivers/tty/serial/sh-sci.c

+11 −0
Original line number Diff line number Diff line
@@ -2625,6 +2625,17 @@ static const struct of_device_id of_sci_match[] = { 
		.compatible = "renesas,scif-r7s72100",

		.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH2_SCIF_FIFODATA_REGTYPE),

	},

	/* Family-specific types */

	{

		.compatible = "renesas,rcar-gen1-scif",

		.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),

	}, {

		.compatible = "renesas,rcar-gen2-scif",

		.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),

	}, {

		.compatible = "renesas,rcar-gen3-scif",

		.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),

	},

	/* Generic types */

	{

		.compatible = "renesas,scif",