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AR-1 - Adding support category for distributions AR-4 - Remove Allwinner legacy AR-5 - Drop Udoo family and move Udoo board into newly created imx6 family AR-9 - Rename sunxi-next to sunxi-legacy AR-10 - Rename sunxi-dev to sunxi-current AR-11 - Adding Radxa Rockpi S support AR-13 - Rename rockchip64-default to rockchip64-legacy AR-14 - Add rockchip64-current as mainline source AR-15 - Drop Rockchip 4.19.y NEXT, current become 5.3.y AR-16 - Rename RK3399 default to legacy AR-17 - Rename Odroid XU4 next and default to legacy 4.14.y, add DEV 5.4.y AR-18 - Add Odroid N2 current mainline AR-19 - Move Odroid C1 to meson family AR-20 - Rename mvebu64-default to mvebu64-legacy AR-21 - Rename mvebu-default to mvebu-legacy AR-22 - Rename mvebu-next to mvebu-current AR-23 - Drop meson64 default and next, current becomes former DEV 5.3.y AR-24 - Drop cubox family and move Cubox/Hummingboard boards under imx6 AR-26 - Adjust motd AR-27 - Enabling distribution release status AR-28 - Added new GCC compilers AR-29 - Implementing Ubuntu Eoan AR-30 - Add desktop packages per board or family AR-31 - Remove (Ubuntu/Debian) distribution name from image filename AR-32 - Move arch configs from configuration.sh to separate arm64 and armhf config files AR-33 - Revision numbers for beta builds changed to day_in_the_year AR-34 - Patches support linked patches AR-35 - Break meson64 family into gxbb and gxl AR-36 - Add Nanopineo2 Black AR-38 - Upgrade option from old branches to new one via armbian-config AR-41 - Show full timezone info AR-43 - Merge Odroid N2 to meson64 AR-44 - Enable FORCE_BOOTSCRIPT_UPDATE for all builds
144 lines
4.7 KiB
Diff
144 lines
4.7 KiB
Diff
From 399e0d92074e30643eee980e744b6cac64bef7a2 Mon Sep 17 00:00:00 2001
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From: Lima Project Developers <dri-devel@lists.freedesktop.org>
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Date: Mon, 14 May 2018 21:47:28 +0800
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Subject: [PATCH 046/146] drm/lima: add PMU related functions
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Signed-off-by: Qiang Yu <yuq825@gmail.com>
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Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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---
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drivers/gpu/drm/lima/lima_pmu.c | 85 +++++++++++++++++++++++++++++++++
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drivers/gpu/drm/lima/lima_pmu.h | 30 ++++++++++++
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2 files changed, 115 insertions(+)
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create mode 100644 drivers/gpu/drm/lima/lima_pmu.c
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create mode 100644 drivers/gpu/drm/lima/lima_pmu.h
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diff --git a/drivers/gpu/drm/lima/lima_pmu.c b/drivers/gpu/drm/lima/lima_pmu.c
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new file mode 100644
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index 000000000000..255a64e9f265
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--- /dev/null
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+++ b/drivers/gpu/drm/lima/lima_pmu.c
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@@ -0,0 +1,85 @@
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+/*
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+ * Copyright (C) 2017-2018 Lima Project
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a
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+ * copy of this software and associated documentation files (the "Software"),
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+ * to deal in the Software without restriction, including without limitation
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+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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+ * and/or sell copies of the Software, and to permit persons to whom the
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+ * Software is furnished to do so, subject to the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in
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+ * all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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+ * OTHER DEALINGS IN THE SOFTWARE.
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+ */
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+
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+#include <linux/of.h>
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+#include <linux/io.h>
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+#include <linux/device.h>
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+
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+#include "lima_device.h"
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+#include "lima_pmu.h"
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+#include "lima_regs.h"
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+
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+#define pmu_write(reg, data) writel(data, ip->iomem + LIMA_PMU_##reg)
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+#define pmu_read(reg) readl(ip->iomem + LIMA_PMU_##reg)
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+
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+static int lima_pmu_wait_cmd(struct lima_ip *ip)
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+{
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+ struct lima_device *dev = ip->dev;
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+ u32 stat, timeout;
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+
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+ for (timeout = 1000000; timeout > 0; timeout--) {
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+ stat = pmu_read(INT_RAWSTAT);
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+ if (stat & LIMA_PMU_INT_CMD_MASK)
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+ break;
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+ }
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+
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+ if (!timeout) {
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+ dev_err(dev->dev, "timeout wait pmd cmd\n");
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+ return -ETIMEDOUT;
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+ }
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+
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+ pmu_write(INT_CLEAR, LIMA_PMU_INT_CMD_MASK);
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+ return 0;
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+}
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+
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+int lima_pmu_init(struct lima_ip *ip)
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+{
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+ int err;
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+ u32 stat;
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+ struct lima_device *dev = ip->dev;
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+ struct device_node *np = dev->dev->of_node;
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+
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+ /* If this value is too low, when in high GPU clk freq,
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+ * GPU will be in unstable state. */
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+ if (of_property_read_u32(np, "switch-delay", &ip->data.switch_delay))
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+ ip->data.switch_delay = 0xff;
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+
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+ pmu_write(INT_MASK, 0);
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+ pmu_write(SW_DELAY, ip->data.switch_delay);
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+
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+ /* status reg 1=off 0=on */
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+ stat = pmu_read(STATUS);
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+
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+ /* power up all ip */
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+ if (stat) {
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+ pmu_write(POWER_UP, stat);
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+ err = lima_pmu_wait_cmd(ip);
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+ if (err)
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+ return err;
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+ }
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+ return 0;
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+}
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+
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+void lima_pmu_fini(struct lima_ip *ip)
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+{
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+
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+}
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diff --git a/drivers/gpu/drm/lima/lima_pmu.h b/drivers/gpu/drm/lima/lima_pmu.h
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new file mode 100644
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index 000000000000..fb68a7059a37
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--- /dev/null
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+++ b/drivers/gpu/drm/lima/lima_pmu.h
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@@ -0,0 +1,30 @@
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+/*
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+ * Copyright (C) 2017-2018 Lima Project
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a
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+ * copy of this software and associated documentation files (the "Software"),
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+ * to deal in the Software without restriction, including without limitation
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+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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+ * and/or sell copies of the Software, and to permit persons to whom the
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+ * Software is furnished to do so, subject to the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in
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+ * all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
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+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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+ * OTHER DEALINGS IN THE SOFTWARE.
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+ */
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+#ifndef __LIMA_PMU_H__
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+#define __LIMA_PMU_H__
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+
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+struct lima_ip;
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+
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+int lima_pmu_init(struct lima_ip *ip);
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+void lima_pmu_fini(struct lima_ip *ip);
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+
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+#endif
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--
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2.17.1
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