4f74957584
This adds the patches to get fairly complete Gemini support
using kernel v4.14. It is mainly a backport of patches from
kernel v4.16 with omissions of things like graphics that require
substantial changes and will be better handled once we move
to the v4.16 kernel proper.
On top of this are some WIP patches for USB support.
Tested on Raidsonic NAS4220B and D-link DNS-313.
ChangeLog v4->v5:
- Fix ethernet single gmac usecase
- Fix USB reset (patch from Hans)
- Fix Raidsonic ethernet skew delay
- Fix kernel config (bridge, squashfs, jffs2, usb)
- Disable second usb port on Raidsonic board until fotg210_hcd is fixed
ChangeLog v3->v4:
- Make sure to use tabs rather than spaces in base-files.
- Use the dns313 image tool from the firmware-utils.
- Break out the addition of the v4.14 patches and the removal
of the v4.4 patches to separate (big) patches.
ChangeLog v2->v3:
- Update the kernel config as indicated by Hauke Martens:
- Regenerate again after rebasing using kernel_oldconfig
dropping a few optimization settings that are now generic
- Drop CFG80211 stuff (module)
- Drop CIFS stuff (module)
- Drop MAC80211 (module)
- Drop wireless drivers (module)
- Enabled OverlayFS
- Added proper DNS-313 boot image generation with the special
file header tool.
- Disable CMA in the kernel
- Enable LZMA compression of the kernel
- Consequently name the nas4220b images nas4220b
- Update preinit MAC detection script to handle also DNS-313
- Add board.d/03_hdparm to set the disk to spin down after
1 minute by default, if we have the hdparm tool installed
ChangeLog v1->v2:
- Processed config through kernel_oldconfig
- Processed patches through make target/linux/{clean,refresh} V=99
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Roman Yeryomin <roman@advem.lv>
80 lines
2.8 KiB
Diff
80 lines
2.8 KiB
Diff
From da443bc125265cae24a0e5f7d1c7bba196a9319f Mon Sep 17 00:00:00 2001
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From: Linus Walleij <linus.walleij@linaro.org>
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Date: Thu, 22 Feb 2018 08:34:35 +0100
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Subject: [PATCH 26/31] power: gemini-poweroff: Avoid spurious poweroff
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On the D-Link DIR-685 we get spurious poweroff from
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infrared. Since that block (CIR) doesn't even have a
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driver this can be safely ignored, we can revisit this
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code once we have a device supporting CIR.
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On the D-Link DNS-313 we get spurious poweroff from
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the power button. This appears to be an initialization
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issue: we need to enable the block (start the state
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machine) before we clear any dangling IRQ.
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This patch fixes both issues.
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Fixes: f7a388d6cd1c ("power: reset: Add a driver for the Gemini poweroff")
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Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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---
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ChangeLog v1->v2:
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- Fix both issues and rename the patch.
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- Proper commit message with specifics.
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---
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drivers/power/reset/gemini-poweroff.c | 30 +++++++++++++++++-------------
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1 file changed, 17 insertions(+), 13 deletions(-)
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--- a/drivers/power/reset/gemini-poweroff.c
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+++ b/drivers/power/reset/gemini-poweroff.c
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@@ -47,8 +47,12 @@ static irqreturn_t gemini_powerbutton_in
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val &= 0x70U;
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switch (val) {
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case GEMINI_STAT_CIR:
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- dev_info(gpw->dev, "infrared poweroff\n");
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- orderly_poweroff(true);
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+ /*
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+ * We do not yet have a driver for the infrared
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+ * controller so it can cause spurious poweroff
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+ * events. Ignore those for now.
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+ */
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+ dev_info(gpw->dev, "infrared poweroff - ignored\n");
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break;
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case GEMINI_STAT_RTC:
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dev_info(gpw->dev, "RTC poweroff\n");
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@@ -116,7 +120,17 @@ static int gemini_poweroff_probe(struct
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return -ENODEV;
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}
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- /* Clear the power management IRQ */
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+ /*
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+ * Enable the power controller. This is crucial on Gemini
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+ * systems: if this is not done, pressing the power button
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+ * will result in unconditional poweroff without any warning.
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+ * This makes the kernel handle the poweroff.
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+ */
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+ val = readl(gpw->base + GEMINI_PWC_CTRLREG);
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+ val |= GEMINI_CTRL_ENABLE;
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+ writel(val, gpw->base + GEMINI_PWC_CTRLREG);
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+
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+ /* Now that the state machine is active, clear the IRQ */
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val = readl(gpw->base + GEMINI_PWC_CTRLREG);
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val |= GEMINI_CTRL_IRQ_CLR;
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writel(val, gpw->base + GEMINI_PWC_CTRLREG);
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@@ -129,16 +143,6 @@ static int gemini_poweroff_probe(struct
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pm_power_off = gemini_poweroff;
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gpw_poweroff = gpw;
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- /*
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- * Enable the power controller. This is crucial on Gemini
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- * systems: if this is not done, pressing the power button
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- * will result in unconditional poweroff without any warning.
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- * This makes the kernel handle the poweroff.
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- */
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- val = readl(gpw->base + GEMINI_PWC_CTRLREG);
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- val |= GEMINI_CTRL_ENABLE;
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- writel(val, gpw->base + GEMINI_PWC_CTRLREG);
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-
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dev_info(dev, "Gemini poweroff driver registered\n");
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return 0;
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