add at24 driver

hc

2023-11-06 15ade055295d13f95d49e3d99b09f3bbfb4a43e7

 kernel/drivers/pci/controller/dwc/pcie-designware-host.c
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@@ -82,7 +82,7 @@
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 	u32 status, num_ctrls;
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 	irqreturn_t ret = IRQ_NONE;
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-	num_ctrls = pp->num_vectors / MAX_MSI_IRQS_PER_CTRL;
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+	num_ctrls = DIV_ROUND_UP(pp->num_vectors, MAX_MSI_IRQS_PER_CTRL);
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 	for (i = 0; i < num_ctrls; i++) {
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 		dw_pcie_rd_own_conf(pp, PCIE_MSI_INTR0_STATUS +
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@@ -679,7 +679,7 @@
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 	dw_pcie_setup(pci);
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-	num_ctrls = pp->num_vectors / MAX_MSI_IRQS_PER_CTRL;
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+	num_ctrls = DIV_ROUND_UP(pp->num_vectors, MAX_MSI_IRQS_PER_CTRL);
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 	/* Initialize IRQ Status array */
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 	for (ctrl = 0; ctrl < num_ctrls; ctrl++) {