diff options
| author | Ben Chuang <ben.chuang@genesyslogic.com.tw> | 2020-02-19 10:29:00 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-03-04 15:41:22 +0100 |
| commit | 31e43f31890ca6e909b27dcb539252b46aa465da (patch) | |
| tree | d9d3dc5d6e431126360b1aaf3d72d14d8eab648d /drivers/mmc | |
| parent | mmc: sdhci-msm: Mark sdhci_msm_cqe_disable static (diff) | |
| download | linux-31e43f31890ca6e909b27dcb539252b46aa465da.tar.xz linux-31e43f31890ca6e909b27dcb539252b46aa465da.zip | |
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: Ben Chuang <ben.chuang@genesyslogic.com.tw>
Tested-by: Raul E Rangel <rrangel@chromium.org>
Fixes: e51df6ce668a ("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.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci-gli.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c index 5eea8d70a85d..ce15a05f23d4 100644 --- a/drivers/mmc/host/sdhci-pci-gli.c +++ b/drivers/mmc/host/sdhci-pci-gli.c @@ -262,10 +262,26 @@ static int gl9750_execute_tuning(struct sdhci_host *host, u32 opcode) 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) { struct sdhci_host *host = slot->host; + gli_pcie_enable_msi(slot); slot->host->mmc->caps2 |= MMC_CAP2_NO_SDIO; sdhci_enable_v4_mode(host); @@ -276,6 +292,7 @@ static int gli_probe_slot_gl9755(struct sdhci_pci_slot *slot) { struct sdhci_host *host = slot->host; + gli_pcie_enable_msi(slot); slot->host->mmc->caps2 |= MMC_CAP2_NO_SDIO; sdhci_enable_v4_mode(host); |