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56 lines
1.9 KiB
Diff
56 lines
1.9 KiB
Diff
From 7d7f6a80f12fb6e7ba903d070512970e304bcd02 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Wed, 9 Oct 2019 17:22:07 +0100
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Subject: [PATCH] bcm2711: Retain support for old dtbs
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The recent series switching to bcm2711 as the DT identifier broke Pis
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running with old DTBs. Add some bcm2838 compatible strings as a
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temporary measure, at least until the next full Raspbian image with
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bcm2711 DTBs.
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See: https://github.com/raspberrypi/linux/pull/3244
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/mach-bcm/board_bcm2835.c | 2 ++
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drivers/clk/bcm/clk-bcm2835.c | 2 ++
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drivers/pinctrl/bcm/pinctrl-bcm2835.c | 5 +++++
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3 files changed, 9 insertions(+)
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--- a/arch/arm/mach-bcm/board_bcm2835.c
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+++ b/arch/arm/mach-bcm/board_bcm2835.c
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@@ -119,6 +119,8 @@ static const char * const bcm2835_compat
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"brcm,bcm2836",
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"brcm,bcm2837",
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"brcm,bcm2711",
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+ // Temporary, for backwards-compatibility with old DTBs
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+ "brcm,bcm2838",
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#endif
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NULL
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};
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--- a/drivers/clk/bcm/clk-bcm2835.c
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+++ b/drivers/clk/bcm/clk-bcm2835.c
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@@ -2396,6 +2396,8 @@ static const struct cprman_plat_data cpr
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static const struct of_device_id bcm2835_clk_of_match[] = {
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{ .compatible = "brcm,bcm2835-cprman", .data = &cprman_bcm2835_plat_data },
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{ .compatible = "brcm,bcm2711-cprman", .data = &cprman_bcm2711_plat_data },
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+ // Temporary, for backwards-compatibility with old DTBs
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+ { .compatible = "brcm,bcm2838-cprman", .data = &cprman_bcm2711_plat_data },
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{}
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};
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MODULE_DEVICE_TABLE(of, bcm2835_clk_of_match);
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--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
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+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
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@@ -1079,6 +1079,11 @@ static const struct of_device_id bcm2835
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.compatible = "brcm,bcm2711-gpio",
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.data = &bcm2711_pinconf_ops,
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},
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+ // Temporary, for backwards-compatibility with old DTBs
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+ {
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+ .compatible = "brcm,bcm2838-gpio",
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+ .data = &bcm2711_pinconf_ops,
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+ },
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{}
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};
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