Commit 31e43f31 authored by Ben Chuang's avatar Ben Chuang Committed by Ulf Hansson

mmc: sdhci-pci-gli: Enable MSI interrupt for GL975x

Enable MSI interrupt for GL9750/GL9755. Some platforms
do not support PCI INTx and devices can not work without
interrupt. Like messages below:

[    4.487132] sdhci-pci 0000:01:00.0: SDHCI controller found [17a0:9755] (rev 0)
[    4.487198] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.PBR2._PRT.APS2], AE_NOT_FOUND (20190816/psargs-330)
[    4.487397] ACPI Error: Aborting method \_SB.PCI0.PBR2._PRT due to previous error (AE_NOT_FOUND) (20190816/psparse-529)
[    4.487707] pcieport 0000:00:01.3: can't derive routing for PCI INT A
[    4.487709] sdhci-pci 0000:01:00.0: PCI INT A: no GSI
Signed-off-by: default avatarBen Chuang <ben.chuang@genesyslogic.com.tw>
Tested-by: default avatarRaul E Rangel <rrangel@chromium.org>
Fixes: e51df6ce ("mmc: host: sdhci-pci: Add Genesys Logic GL975x support")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200219092900.9151-1-benchuanggli@gmail.comSigned-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 9051db38
...@@ -262,10 +262,26 @@ static int gl9750_execute_tuning(struct sdhci_host *host, u32 opcode) ...@@ -262,10 +262,26 @@ static int gl9750_execute_tuning(struct sdhci_host *host, u32 opcode)
return 0; return 0;
} }
static void gli_pcie_enable_msi(struct sdhci_pci_slot *slot)
{
int ret;
ret = pci_alloc_irq_vectors(slot->chip->pdev, 1, 1,
PCI_IRQ_MSI | PCI_IRQ_MSIX);
if (ret < 0) {
pr_warn("%s: enable PCI MSI failed, error=%d\n",
mmc_hostname(slot->host->mmc), ret);
return;
}
slot->host->irq = pci_irq_vector(slot->chip->pdev, 0);
}
static int gli_probe_slot_gl9750(struct sdhci_pci_slot *slot) static int gli_probe_slot_gl9750(struct sdhci_pci_slot *slot)
{ {
struct sdhci_host *host = slot->host; struct sdhci_host *host = slot->host;
gli_pcie_enable_msi(slot);
slot->host->mmc->caps2 |= MMC_CAP2_NO_SDIO; slot->host->mmc->caps2 |= MMC_CAP2_NO_SDIO;
sdhci_enable_v4_mode(host); sdhci_enable_v4_mode(host);
...@@ -276,6 +292,7 @@ static int gli_probe_slot_gl9755(struct sdhci_pci_slot *slot) ...@@ -276,6 +292,7 @@ static int gli_probe_slot_gl9755(struct sdhci_pci_slot *slot)
{ {
struct sdhci_host *host = slot->host; struct sdhci_host *host = slot->host;
gli_pcie_enable_msi(slot);
slot->host->mmc->caps2 |= MMC_CAP2_NO_SDIO; slot->host->mmc->caps2 |= MMC_CAP2_NO_SDIO;
sdhci_enable_v4_mode(host); sdhci_enable_v4_mode(host);
......
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